American Music Awards Photos: 40 Years Of AMAs History
Some of music's top ladies -- Selena Gomez, Nicki Minaj, Katy Perry and Taylor Swift -- joined forces for a photo at the 2011 American Music Awards.

Watch the American Music Awards' red carpet show live right here now!

Before the 2012 American Music Awards hits ABC live tonight (Nov. 18 at 8/7c), keep it right here to watch the Coca-Cola Red Carpet Live! @ The 2012 AMAs show. In the video player above, see the hosts present all your favorite stars as they strut the red carpet at the 40th Anniversary AMAs event, held at the Nokia Theater in L.A.

VIDEO: Top 10 Moments | PHOTOS: AMAs History
FULL AMAs COVERAGE

Performers at this year's awards show include| Video: Carly Rae Jepsen Talks AMAs

This year's ceremony will feature a new category, electronic dance music, as well as awards in genres including pop/rock, country, rap/hip-hop, soul/R&B, alternative, adult contemporary, Latin and contemporary inspirational. Rihanna and Minaj lead the nominations with four each, and winners will be decided by online fan voting for the sixth year.

Other artists with multiple nominations include Drake, Justin Bieber, Maroon 5, One Direction and Usher with three each, and Underwood, Chris Brown, fun., Gotye, J. Cole, Katy Perry, Kelly Clarkson, Luke Bryan and Pitbull with two apiece.