"Maji Desu ka Ska!" (まじですかスカ! , Maji Desu ka Suka! , "Seriously, Ska!?") is the 45th single of the Japanese group Morning Musume, released on April 6, 2011 on the Zetima record label. The single sold 33,698 copies in its first week, charting at #5 on the weekly Oricon singles charts and peaking at #7 on the Japan Billboard Hot 100.
"Maji Desu ka Ska!" was the group's most successful song
( z1 song :ARG1-of ( z2 have-degree :ARG2 ( z3 succeed :ARG0 ( z4 group ) ) :ARG3 ( z5 most ) ) :domain ( z6 song :name ( z7 name :op "Majaji" :op "Desu" :op "ka" :op "Ska" ) ) )