Popsugar Celebrity Zac Efron Zac Efron at SXSW 2014 | Pictures Zaz Efron Is Already Causing a Stir at SXSW March 8, 2014 by Nick Maslow View On One Page Photo 1 of 5 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Zac Efron, Christopher Mintz-Plasse, and Dave Franco kicked back during their interview. Source: Twitter user ZacEfron Previous Next Start Slideshow Zac EfronSXSW