 In promotion of the album , N.E.R.D performed in Kanye West 's Glow in the Dark Tour as well as the Isle of Wight Festival . The band also performed at the Austin City Limits festival , where they encouraged fans to dance on stage and urged them to vote in the 2008 United States elections . The song " Spaz " was used for commercials for the Zune Pass . The band performed at Vanderbilt University 's Rites of Spring Music Festival in April . 
