Usher went straight to The Bank following the third stop on his “OMG Tour” at the Mandalay Bay Events Center in Las Vegas. The ladies’ man, who will perform at Sunday’s American Music Awards, popped bottles and smoked cigars with his Ocean’s 7 crew Trey Songz and Jermaine Dupri at the nightclub inside the Bellagio Hotel and Casino on Saturday (Nov. 13).