Kammala wannan jumla: A cikin 2011, San E ya fitar da waƙoƙi da yawa, gami da "Don Allah Kada Ku tafi", haɗin gwiwa tare da mawaƙin Outsider da mawaƙin Lee Changmin (na 2AM). Waƙar ta kai # 14 a kan Gaon Digital Chart, ta zama waƙar da ta fi fice a cikin jadawalin yayin da aka yi kwangila a ƙarƙashin JYP Entertainment. Ya kuma yi aiki tare a wannan shekarar tare da Verbal Jint, Beenzino, Swings, da sauran masu zane-zane a kan "Stand Up, Japan!" wanda ya amfana da kokarin taimakon Japan bayan da aka kashe shi.
Tsunami na Tohoku.