On Nov. 10, Prince launches an "indefinite" run of twice-a-weekend shows at Las Vegas' 3121 nightclub, inside the Rio hotel. Tickets cost $125, and go on sale today.... Janet Jackson, Fergie and the Killers are all on board to perform live at the 2006 Billboard Music Awards, airing Dec. 4 on Fox. Celine Dion, Rihanna, Chris Brown, Katharine McPhee and Chris Daughtry are set to make guest appearances.... Apple has launched iTunes Latino, a dedicated area within its online store for Latin music, videos, audiobooks and podcasts.