Timbaland’s Shock Value II debuts Dec. 8.

Eminem & 50 Cent “Crack A Bottle”/”Forever”

The champ is here! After a two year absence from the music industry, Love? star Jennifer Lopez made an interesting return to the stage with a lip-synching performance of her new single — “Louboutins” –at Sunday night’s AMA at the Nokia Theater in Los Angeles.

Keep your eyes peeled for the fall @ 2:20!

R&B legend Whitney Houston performed her inspirational comeback track, “I Didn’t Know My Own Strength,” featured on the songbird’s seventh album I Look To You, during the 2009 American Music Awards on Sunday night.

New York’s own Jay-Z and Alicia Keys got World Series champ Alex Rodriguez — better known these days as Kate Hudson’s manbag — to introduce their live performance of the Big Apple’s new anthem, “Empire State of Mind,” at the 2009 AMAs.

Luckily for everyone, there were no guest appearances by Lil Mama.

Pop/R&B legend Janet Jackson opened the 2009 American Music Awards with a medley of her hits, beginning with her 1986 breakout charttopper “Control.”

Janet’s late brother, Michael Jackson, is nominated for several prizes at tonight’s ceremony.

Flanked by her legion of dancers, Jennifer Lopez rehearsed for her performance at Sunday’s 2009 American Music Awards at the Nokia Theater in Los Angeles Thursday.

Jenny From The Block will be performing her new single “Louboutins,” the lead track from her forthcoming album Love? –dropping Jan. 26. Jennifer’s going all out for show; she even enlisted famed shoe designer Christian Louboutin to design a pair of his signature red-soled stilettos for her AMA performance.