Lopez tears it up at the AMAs and continues her celebration at DSquared party with boyfriend Casper Smart, BFF Leah Remini and Robert Pattinson

By Wade Rouse and Raha Lewis
Updated November 25, 2013 10:30 AM
Getty Images/Donato Sardella

After paying tribute to salsa queen Celia Cruz and tearing it up “On the Floor” at the AMAs Sunday night, Jennifer Lopez continued to party well into the night.

Lopez attended an after party at Chateau Marmont hosted by the owners of DSquared.

The American Idol judge, whose Kohls campaign (#getjenniferthere) and knockout performance made her the No. 1 trending topic on Twitter, wore a black DSquared dress designed by the fashion house’s twin brothers, Dean and Dan.

While DJ Big Syphe spun tunes, Lopez, 44, spent the night dancing with boyfriend Beau “Casper” Smart and stunning BFF Leah Remini, with whom she shared a bowl of spaghetti and meatballs.

Robert Pattinson arrived at the party around midnight, wearing jeans, a black leather jacket and black beanie, and hung with friends on the terrace under a heat lamp smoking cigarettes.

Other celebrities at the party included music producer L.A. Reid, singer Akon as well as Dancing With the Stars‘ Maksim Chmerkovskiy, who performed with Lopez at the AMAs.