Rappersroom / Rappersroom News Bun B Helps To Rock Stage With Lupe Fiasco by DeyiorNovember 19, 2012 ShareTweetPin ItShare This Saturday, Lupe Fiasco and Bun B rock the stage at the Austin City Limits at the Moody Theater in Austin, TX. The two spit the track “Swang On Em” amongst other verses to the energetic crowd.