Off Course was a Japanese folk rock band formed by Kazumasa Oda and Yasuhiro Suzuki.
They broke up after a farewell performance at the Tokyo Dome on February 26, 1989.
Their most famous songs are "Sayonara" (さよなら), "YES-YES-YES", "Setsunakute"(せつなくて), and "Love is Determination".
*Also in the anime series Sonic X.