On August 3, Whataburger celebrates its 60th anniversary as a southern burger icon and as one of the nation’s largest burger chains, with more than 700 locations in 10 states. To mark the occasion and to thank its millions of loyal fans, the company will host “Orange Night Out” at most of its restaurants on Tuesday, August 3 from 5 to 8 p.m. Every dine-in customer who comes dressed in the company’s signature orange will receive a free Whataburger.