Drummer Felix Walworth tweets what he claims is a festival contract that threatens immigration action to artists who perform at fringe gigs The South by Southwest Music Festival is threatening foreign-born music acts with deportation if they participate in “non-sanctioned” performances during the Texas gathering, one musician says. Any acts from outside the U.S. that accept side gigs – fringe events with deep-pocketed sponsors that pay well for artists in town – are allegedly subject to immigration action for violating the SXSW terms.