 | | Miley Cyrus became an overnight sensation in 2006 as the star of Hannah Montana, a popular Disney Channel television series whose success allowed Cyrus to launch her own recording career several years later. |
 | | Avril Lavigne first appeared in summer 2002, touting an addictive debut single (the spunky pop/rock gem "Complicated") and a skatepunk image that purposely clashed with the polished glamour of mainstream pop. |
 | | Before releasing her debut album in 2009, Selena Gomez began her career as a child actress. Born in 1992, she grew up in Texas and got her first break as a cast member on the kids TV show Barney and Friends. |
 | | Sister acting/singing duo Aly & AJ -- whose full names are Alyson and Amanda Joy Michalka -- showed a passion for both kinds of performing at a very young age: they started playing piano at age six and began acting classes soon after. |
 | | More than any other single artist, Britney Spears was the driving force behind the return of teen pop in the late '90s. |
 | | Best known for her roles in the High School Musical films and the TV series The Suite Life of Zack & Cody, New Jersey-born actress/singer/model Ashley Tisdale began her career in show business at age three, and sang for President Bill Clinton at age 12. |
 | | Actress/teen pop star Lindsay Lohan entered the world of show business at the tender age of three as a Ford model, which led to television commercials for the Gap, Pizza Hut, and Wendy's. |
 | | Jordin Sparks may have been the youngest American Idol when she won the title on the reality show's sixth season, but the Glendale, AZ, resident had already packed plenty of accomplishments into 17 years. |
 | | Pop singer and actor Jesse McCartney was a child performer dynamo, singing on Broadway and landing an acting gig on All My Children before even joining his first boy band, a feat that came at the age of 12. |
 | | Actress/vocalist Demi Lovato began making a name for herself after starring alongside the Jonas Brothers in the 2008 Disney Channel movie Camp Rock. |
 | | Best known as Gabrielle Montez from the hit Disney Channel movie and soundtrack album High School Musical, actress/singer Vanessa Anne Hudgens has also appeared on Drake & Josh and The Sweet Life of Zack and Cody. |
 | | She might be the younger sister of superstar Jessica Simpson, but don't confuse their tastes or style when it comes to music. |
 | | A leader in the parade of Mickey Mouse Club veterans who stormed pop at the turn of the millennium, Christina Aguilera was the sexy, brassy diva of the bunch -- the Rolling Stones to Britney Spears’ Beatles, as it were. |
 | | A former Christian artist, Katy Perry rebranded herself as a larger-than-life pop star and rose to prominence during the summer of 2008. |
 | | The winner of Fox TV's first American Idol competition during the summer of 2002, Kelly Clarkson went from an anonymous talent to a nationally known singer in a matter of months, performing for an audience of millions. |
 | | Although Jessica Simpson dabbled in film, reality TV, and eventually contemporary country music during the 2000s, she is best known as a dance-pop vocalist who rose to fame in the late '90s alongside such teenaged acts as 98°. |
 | | Like Martika, Jennifer Love Hewitt, and Rahsaan Patterson, Stacy "Fergie" Ferguson got her first major break as a youngster on the television program Kids Incorporated. |
 | | Although initially viewed as another face in the late-'90s crowd of teen pop acts, Pink (professionally known as P!nk) quickly transcended and outgrew that label with her combination of pop songcraft and powerhouse, rock-influenced vocals. |
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 | | A brash and driven pop singer/songwriter, Ke$ha (Kesha Rose Sebert) was born in Los Angeles but moved at the age of four to Nashville, where her mother -- a longtime songwriter -- had inked a publishing deal. |
 | | One of the most popular teenaged groups of the 2000s, the Jonas Brothers crafted hook-filled power pop anthems in the vein of McFly, Hanson, and the Modern Lovers. |
 | | Founded by choreographer Robin Antin in 1995, the Pussycat Dolls began as a burlesque dance revue based in Los Angeles, spawned a second revue in Las Vegas, grew into an A-list phenomena with a revolving cast of guest celebrities, and eventually became a recording act with a number one dance hit. |
 | | Although she never reached the commercial heights of Britney Spears and Christina Aguilera, Mandy Moore proved to be one of the more resilient members of the late-'90s teen pop explosion. |
 | | Growing up on the outskirts of Boston, MA, JoJo listened and learned as her mother practiced hymns. She started singing by imitating her mother, but quickly put her own spin on everything from nursery rhymes to pop tunes. |
 | | |
 | | Taylor Swift became one of country's brightest (and youngest) faces in 2006, when the 16-year-old released her first album. |
 | | David Archuleta became one of the most recognizable figures on television in 2008, when his tenor vocals and boyish charm helped earn him a second-place finish on American Idol. |
 | | The younger sibling of former child actor Haley Joel Osment, actress/vocalist Emily Osment launched her career at a young age, having landed a role in the 1999 film The Secret Life of Girls when she was only seven years old. |
 | | Actress/singer Jennifer Lopez was born in the Bronx, New York, on July 24, 1969; after starting out in musical theater as a child, she made her film debut at age 16 in the little-seen My Little Girl, but her career then stalled until she was tapped to become one of the dancing "Fly Girls" on the television sketch comedy series In Living Color. |
 | | Before she discovered she could write songs, Gwen Stefani was looking forward to a life of marriage, children, and white picket fences. |
 | | Glamorously gaudy, a self-made post-modern diva stitched together from elements of Madonna, David Bowie, and Freddie Mercury, Lady Gaga was the first true millennial superstar. |
 | | Going from a series of books about a girl pop band to a series of Disney TV movies about a girl pop band to an actual, touring girl pop band, the Cheetah Girls began as fictional characters in Deborah Gregory's 16 novels for young-adult readers. |
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 | | Teenage actress Miranda Cosgrove launched her music career in 2007, when she scored a hit with the theme song to her own TV show. |
 | | Pop singer Justin Bieber was barely into his teens when he released his platinum-selling debut, My World, and became one of 2009's youngest success stories. |
 | | Best known as Troy Bolton, the captain of the basketball team who discovers a passion for singing in the Disney Channel movie High School Musical, Zac Efron has been an actor and singer since childhood. |
 | | Like the Naked Brothers Band, Big Time Rush is both a pop band and a Nickelodeon TV series. Launched in 2009, the show followed the fictional lives of four high school friends as they move to Los Angeles, sign a record deal, and become a chart-topping boy band. |
 | | Combining the vocal prowess of Beyoncé, the genre-hopping sounds of Gwen Stefani, and the feisty attitude of P!nk, songwriter Jessie J eventually overcame various career setbacks and health problems to become a star in her own right. |
 | | Originally from New Zealand, Natasha Bedingfield grew up in southeast London, where she and her siblings were raised around music. |
 | | Before becoming a front-runner in the eighth season of American Idol, Adam Lambert made his name in the theater world, where he performed alongside Val Kilmer in the debut production of Ten Commandments: The Musical and landed an understudy role in a touring production of Wicked. |
 | | The Black Eyed Peas transcended hip-hop to become one of the most commercially successful pop groups of the 2000s. |
 | | A striking young woman with a strong vocal resemblance to the young Whitney Houston and a large mop of blonde corkscrew curls, Leona Lewis won the third series of the British reality talent show The X Factor in a landslide. |
 | | Teen heartthrob Mitchel Musso began his career as an actor, playing Oliver "Smoken" Oken on The Disney Channel's Hannah Montana before adding a music career to his résumé in 2009. |
 | | Canadian pop star Carly Rae Jepsen spent her formative years absorbing pop culture in her hometown of Mission, British Columbia. |
 | | Spice Girls were the first major British pop music phenomenon of the mid-'90s to not have a debt to independent pop/rock. |
 | | Splitting the difference between Shania Twain's twangy pop and Christina Aguilera's R&B acrobatics, vocalist Jessie James made her debut with "Wanted," a song that featured prominently in the film Confessions of a Shopaholic. |
 | | When Nelly Furtado appeared with her neo-hippie, multiculti debut, Whoa, Nelly!, in 2001, a dance-diva makeover seemed like an impossibility, but the singer/songwriter revived and sustained her career with the sexually charged Loose in 2006, in the process consolidating her position as one of the most unpredictable artists of her decade. |
 | | A self-proclaimed product of his past, rapper Sean Kingston's history helps describe his sound. Born in Miami, FL, then raised in Kingston, Jamaica, from the age of six, he mixed more than a little dancehall and reggae into his hip-hop. |
 | | After working a string of behind-the-scenes jobs -- including writing songs for Brandy, singing backup for the Sugababes, and impersonating Elvis -- songwriter/producer Bruno Mars put his name on top of the charts in 2009 by co-writing Flo Rida's hit song "Right Round. |
 | | Hot Chelle Rae took shape in 2005, balancing the polished sounds of mainstream pop with energized, guitar-heavy dance-rock. |
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