2. Debbie Gibson--At age 17, was the youngest female artist to have written, produced, and performed a Number 1 song ("Foolish Beat," 1987). Seminal album: Electric Youth.
3. Tiffany--Recorded a hit version of "I Think We're Alone Now," at age 16. For her tour's opening act, hired a then unknown singing group called New Kids on the Block.
4. Janet Jackson--After two teeny-bopper albums in 1982 and 1984, Janet broke the mold with "Control" at age 20.
5. Mariah Carey--Voted Best Female Artist and Best Female Vocalist at the Grammy's at age 20. Went on to become the best-selling female performer of the '90s.
6. Whitney Houston--At 22 released her first self-entitled album, which went to #3 with her 1985 hit, "You Give Good Love." Also starred in a movie with Kevin Costner, and later, smoked dope.
7. Brandy--Brandy Norwood scored a series of hits at age 16, including "I Wanna Be Down." Parlayed her musical fame into the leading role on the awesome UPN sitcom Moesha.
8. Aaliyah--At only 15 years of age, Aaliyah scored two hits with "Back and Forth" and an Isley Brothers cover, "At Best (You Are Love)." The same year she wed troubled R&B crooner R. Kelly. Ick.
9. Mandy Moore--This multi-platform performer made her 1999 platinum debut with "So Real" featuring the pedophilic hit "Candy." She was 15.
10. Britney Spears--In 1998, after a stint on The Mickey Mouse Club, Britney's startling video for "ÉBaby One More Time" launched her career. At 16, she unknowingly paved the way for the next wave of "Singing Lolitas."
11. Christina Aguilera--Another former Mouseketeer, Christina's big break came at age 17, singing "Reflections" from the Disney animated hit, Mulan. Within a year she had two number one hits with "Genie in a Bottle," and "What a Girl Wants."
12. Avril Lavigne--Arguably the first "anti-Britney," this punk pop Canadian was 17 when she brought skinny ties and Chuck Taylors to the pre-pubescent masses in 2002 with her hit, "Complicated."
13. Pink--Sick of being labeled "just another teen act" (even at the age of 21) after her release of "There U Go," she recorded "Mizunderstood" with the unbelievably hooky "Get This Party Started."
14. Michelle Branch--Taking more of an Alanis Morrisette route, 17-year-old singer/guitarist Michelle Branch scored her first hit in 2001 with "Everywhere."
15. Vanessa Carlton--With 2002's piano driven "A Thousand Miles," Vanessa Carlton recorded a top ten hit at age 22, and has a new single coming out just aboutÉ now, entitled "White Houses."
16. Kelly Clarkson--The first ever winner of American Idol, Kelly Clarkson followed up her victory with a mildly successful single "A Moment Like This" at age 20.
17. Joss Stone--Dubbed "the next Aretha Franklin" by some idiot, Stone is nevertheless an amazingly accomplished soul singer for being only 16 years old. Big with the adult contemporary crowd, her sultry cover of the White Stripes' "Fell in Love with a Boy" is wicked hot.
18. TATU--Formed in 2000 by Russian script writer and director Ivan Shapovalov, Lena and Yulia went on to have a teenage lesbionic video and hit with "All the Things She Said," at ages 17 and 16, respectively.
19. Kelly Osbourne--Daughter of Ozzy, and co-star of The Osbournes. At age 17, Kelly parlayed her fame into a record deal as well as the aptly named single, "Shut Up."
20. Beyonce--After forming Destiny's Child at age 9 (!!), within 10 years they had sold 33 million albums worldwide. Her 2003 solo album "Dangerously in Love" brought her five Grammys.
21. Jessica Simpson--Though popular on the Christian Youth circuit, Simpson didn't hit it big until touring with boy-band 98 Degrees, and marrying Nick Lachey. After a moderately successful debut album at age 19, Simpson gained superstardom playing a dumb blonde (herself) on the MTV reality show Newlyweds.
22. Shakira--Born in Barranquilla, Colombia, Shakira became an American sensation at age 23, capitalizing on the Latino pop trend set by Marc Anthony, Ricky Martin and Jennifer Lopez.
23. Hilary Duff--A classic "multi-platform" performer, Hilary first made it big as Lizzie Maguire on the Disney channel (which, by the way, is the birthing canal of most new pop princesses), moving easily into movies and now, recording. Her debut album "Metamorphosis" went triple platinum in 2003, at age 16.
24. Ashlee Simpson--Starting out as a cast member on TV's 7th Heaven, this 19-year-old sister of Jessica Simpson scored her own MTV reality show as well, The Ashlee Simpson Show, which documented the making of her first album. The debut single, Pieces of Me, has already put her older sister's career to shame.
25. Lindsay Lohan--Born in '86, a cast member of the soap Another World in '97, a starring role in the remake of The Parent Trap in '98, another hit with Freaky Friday in '03, Mean Girls in '04, and her single from Confessions of a Teenage Drama Queen called "That Girl" has just been released. She's only 18, which means you need to get to work.
26. Haylie Duff--The older sister of Hilary Duff by two years. Seen in Napoleon Dynamite, Haylie is currently on tour with Hilary, and co-starred with her in a really weird homo-riffic video remake of The Go-Go's "Our Lips are Sealed." Currently in a battle with Paris Hilton over the single "Screwed," which they both recorded. Oops.
27. Paris Hilton--According to MTV news, "The hotel heiress has been working on recording a dance pop album, which her producer Romeo Antonio describes as a cross between Jessica Simpson and Beyoncé." No label has picked it up yet. At age 23, she'd better hurry.
28. JoJo--Her appearance on America's Most Talented Kids got the attention of former Aaliyah producer Vincent Herbert, and she currently has a top R&B hit with "Leave (Get Out)." By the way, she's only 13. Oh, for the love of Christ.
29. Maria Mena--This 18-year-old Norwegian had some MTV airplay this past summer with the awkwardly cute, but mostly annoying song, "You're the Only One."