RAM WIRE released their second single "Daijoubu, Bokura" on Dec. 12, 2012. The song was chosen as the ending theme to the anime spinoff "Naruto SD: Rock Lee and His Ninja Pals" and was extremely well received. The song has also been chosen as the theme song to ABC Mart's "Year End Stock Clearance Sale Part 1" TV commercial that began airing all over Japan on Nov. 23.
This article contains translated excerpts from:
http://blog.excite.co.jp/exanime/19248323/ (Japanese)