American Music Awards 2012: 7 Memorable Performances in AMA History (VIDEOS)
In its 40-year history, the American Music Awards has shelled out some of the best, most memorable and, occasionally, infamous performances ever to hit the small screen.
Indeed, from Whitney Houston's "Porgy and Bess" medley to Adam Lambert's controversial kiss, in 2009, the AMAs have become a lightning-rod source of pop culture headlines and history-defining moments.
As fans wait to find out, check out seven of the most memorable performances in American Music Awards history, then share your favorites in the comments.
The 2012 American Music Awards air Sunday night on ABC, beginning at 8PM ET.
Adam Lambert - "For Your Entertainment"
Lambert found himself in a heap of controversy after his highly suggestive performance of "For Your Entertainment," during which he locked lips with his male keyboardist.
Beyonce Knowles - "Single Ladies (Put a Ring on It)"
Knowles brought down the house one more time with another dance-happy rendition of "Single Ladies," in 2008.
Whitney Houston - "Porgy and Bess" Medley
Proving she was one of the all-time greats, Houston captivated audiences with a medley of songs from "Porgy and Bess," mixed in with some of her own, in 1994.
Lady Gaga - "Bad Romance" and "Speechless"
Lady Gaga set fire to the stage -- quite literally -- during her epic performance in 2009.
Janet Jackson - Medley of Hits
Janet Jackson took fans on a wonderful trip down memory lane when she performed a medley of her biggest hits, in 2009.
Jennifer Lopez - "Louboutins"
Jennifer Lopez took a tumble during an infamous performance of her recession-friendly track "Louboutins,' in 2009.
Guns 'n Roses - "Patience"
Guns 'n Roses redefined the word patience when they performed a seven-minute rendition of their song -- yep, you guessed it -- "Patience," in 1989.