While Lupe Fiasco and Cee-Lo Green were no shows for Atlantic Records' SXSW showcase at La Zona Rosa in Austin, TX last night, platinum selling artists like B.o.B and Wiz Khalifa made up for their absence. During Khalifa's set, he paid tribute to a fallen soldier in the game, Nate Dogg, who passed away late Tuesday night. Nice touch Wiz.