Ludacris arrives to “Chelsea Lately” bearing gifts in the form of his Conjure cognac. The rapper, who currently has the No. 1 album in the country, discusses his bet with Diddy, what he does on his RV, and his “Baby” collaborator Justin Bieber’s “player” ways.

Usher’s promo tour kicked into high gear with a smoldering performance of his single “Hey Daddy (Daddy’s Home)” on Monday’s “Late Show with David Letterman.” Despite his love for music, the 31-year-old singer told The New York Times that he doesn’t want to have to be working in nine years. “Hopefully at 40 I won’t have to be on a stage,” he said.