JLo’s hot AMA performance

Singer Jennifer Lopez performs at the 2011 American Music Awards in Los Angeles November 20, 2011. REUTERS/Mario Anzuoni

Singer Jennifer Lopez performs at the 2011 American Music Awards in Los Angeles November 20, 2011. REUTERS/Mario Anzuoni

Singer Jennifer Lopez performs with will.i.am (not pictured) at the 2011 American Music Awards in Los Angeles November 20, 2011. REUTERS/Mario Anzuoni

at the 39th Annual American Music Awards on Sunday, Nov. 20, 2011 in Los Angeles. (AP Photo/Matt Sayles)

Singer Jennifer Lopez performs at the 2011 American Music Awards in Los Angeles November 20, 2011. REUTERS/Mario Anzuoni

at the 39th Annual American Music Awards on Sunday, Nov. 20, 2011 in Los Angeles. (AP Photo/Matt Sayles)

Singer Jennifer Lopez performs at the 2011 American Music Awards in Los Angeles November 20, 2011. REUTERS/Mario Anzuoni

Singer Jennifer Lopez performs a medley of songs at the 2011 American Music Awards in Los Angeles November 20, 2011. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) (AMA-SHOW)

Singer Jennifer Lopez performs at the 2011 American Music Awards in Los Angeles November 20, 2011. REUTERS/Mario Anzuoni

Singer Jennifer Lopez performs at the 2011 American Music Awards in Los Angeles November 20, 2011. REUTERS/Mario Anzuoni

Singer Jennifer Lopez performs at the 2011 American Music Awards in Los Angeles November 20, 2011. REUTERS/Mario Anzuoni

Singer Jennifer Lopez performs a medley of songs at the 2011 American Music Awards in Los Angeles November 20, 2011. REUTERS/Mario Anzuoni

Singer Jennifer Lopez performs with will.i.am (not pictured) at the 2011 American Music Awards in Los Angeles November 20, 2011. REUTERS/Mario Anzuoni