Mr. Simple

Super Junior had their debut performance of "Mr. Simple" and a non-album track "Superman" at Music Bank on August 5, 2011, followed by Music Core the following day, Inkigayo after that and on August 11 on M! Countdown. However, promotions for the song ended on August 28 due to the enlistment of member Heechul to the army on September 1, 2011.