1 of 30 Jon Kopaloff/FilmMagic.com
Christina Aguilera has apparently toned down her red-carpet wear now that she's a mom. She kept it simple and classy in this gown.
2 of 30 Jon Kopaloff/FilmMagic.com
Alicia Keys pauses for the cameras in her navy blue gown at the 2008 American Music Awards. Keys took home two awards and was nominated in five categories.
3 of 30 Jeff Kravitz/FilmMagic.com
Rihanna shows a lot of leg in this ruffled outfit. Kinda looks like she rolled around in a table cloth before hitting the red carpet.
4 of 30 Frazer Harrison/Getty Images
The beautiful Ali Landry chose to stand out in the AMA crowd in this eye-catching pink number.
5 of 30 Jeff Kravitz/FilmMagic.com
Birthday girl Miley Cyrus and family pause for a photo on the red carpet. That should definitely make the Sweet 16 scrapbook.
6 of 30 Frank Micelotta/Getty Images
Award show or vampire convention? Nikki Sixx and tattoo artist Kat Von D bring a little murky rock and roll to the American Music Awards.
7 of 30 Kevin Winter/Getty Images
Motley Crue front man Vince Neil and wife Lia Gherardini rock the red carpet at the 2008 AMAs. We know why he's smiling!
8 of 30 Jon Kopaloff/FilmMagic.com
Natasha Bedingfield is all smiles for the cameras. Strangely, her outfit had the exact opposite effect for us.
9 of 30 Kevin Winter/Getty Images
The Pussycat Dolls look fun and flirty in their sexy short gowns. Meow!
10 of 30 Jeff Kravitz/FilmMagic.com
The gentlemanly Ne-Yo looks as dapper as ever as he pauses for a photo at the 2008 American Music Awards.
11 of 30 Jeff Kravitz/FilmMagic.com
We're glad Sarah Silverman got dressed up for the party. We guess she was just out showing support for on-again, off-again boyfriend Jimmy Kimmel, who hosted the festivities.
12 of 30 Jeff Kravitz/FilmMagic.com
British beauty Leona Lewis never disappoints, as evidenced by this beige ruffled number.
13 of 30 Jeff Kravitz/FilmMagic.com
The New Kids on the Block (Danny Wood, Jordan Knight, Donnie Wahlberg, Jonathan Knight and Joey McIntyre) may not be so new, but they still landed a performance gig on the big stage.
14 of 30 Jeff Kravitz/FilmMagic.com
Host Jimmy Kimmel kicks off the evening with a few jokes. The Jonas Brothers just can't catch a break at award shows these days.
15 of 30 Jeff Kravitz/FilmMagic.com
Christina Aguilera belts out high note in her six-song medley of hits (including her latest) that opened the show.
16 of 30 Jeff Kravitz/FilmMagic.com
Presenters Paris Hilton and T-Pain may not have taken home any gold, but based on their outfits, did they really need any?
17 of 30 Jeff Kravitz/FilmMagic.com
Pink dons some evening wear for her performance of new single "Sober." Ironically, former Stone Temple Pilots front man Scott Weiland appeared to be anything but when he introduced her.
18 of 30 Jeff Kravitz/FilmMagic.com
Justin Timberlake presents Annie Lennox with a hug. Oh, and the Award of Merit.
19 of 30 Jeff Kravitz/FilmMagic.com
Miley Cyrus rocked out for her Sweet 16 with a frantic performance of "Fly on the Wall."
20 of 30 Vince Bucci/Getty Images
Brad Paisley is all smiles as he accepts his first American Music Award for Country Male Artist.
21 of 30 Jeff Kravitz/FilmMagic.com
Beyonce Knowles performs does her thing during her performance of "Single Ladies (Put a Ring on It)."
22 of 30 Kevin Mazur/WireImage.com
Double winner Kanye West sets the stage aglow for his performance of his new single, "Heartless."
23 of 30 Jeff Kravitz/FilmMagic.com
The Jonas Brothers got all dressed up just to let loose during their rockin' performance at the American Music Awards.
24 of 30 Jeff Kravitz/FilmMagic.com
Queen Latifah, Kathleen Battle and Alicia Keys joined forces for a performance at the 2008 American Music Awards.
25 of 30 Jeff Kravitz/FilmMagic.com
Coldplay's Chris Martin battles the confetti during his band's performance at the American Music Awards.
26 of 30 Frederick M. Brown/Getty Images
Mariah Carey poses with her Award of Special Recognition alongside husband Nick Cannon. Carey also took home the Favorite Soul/Rhythm & Blues Album.
27 of 30 Jon Kopaloff/FilmMagic.com
Catwoman Rihanna poses with her two American Music Awards backstage.
28 of 30 Jon Kopaloff/FilmMagic.com
Country cutie Taylor Swift poses with her award for Favorite Country Female Artist. Who needs Joe Jonas?
29 of 30 Frederick M. Brown/Getty Images
Season 6 American Idol winner Jordin Sparks poses with her award for Favorite Adult Contemporary Artist.
30 of 30 Frederick M. Brown/Getty Images
Chris Daughtry and bandmates pose with the Favorite Pop/Rock Band, Group or Duo award. Or maybe he's trying to melt it with his mind?