Maji Desu ka Ska! (まじですかスカ！; Seriously? Ska!) is the 45th single by Morning Musume. The single was released in limited A, limited B, limited C, limited D, and regular editions, the limited editions coming with bonus DVDs. This is the first single to feature ninth generation members. The single was originally scheduled to be released on March 23, 2011, but it was postponed to April 6 due to the 2011 Touhoku earthquake and tsunami.