Simple Plan
Asal nama Simple Plan tidaklah jelas. Ketika ditanya, para personel band sering memberikan jawaban berupa lelucon, termasuk salah satunya adalah karena mereka membentuk band sebagai sebuah "rencana dadakan" untuk menghindari bekerja di restoran cepat saji. Tapi bagaimanapun, kemungkinan paling besar, nama ""Simple Plan"" diambil dari judul film "A Simple Plan", atau lagu karya Piebald berjudul "Just a Simple Plan".
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.