Massara Blue Jeans (まっさらブルージーンズ; Brand New Blue Jeans) is ℃-ute's first indie single. The single was released on May 6, 2006 at the second to last day of the Morning Musume Concert Tour 2006 Haru ~Rainbow Seven~, where ℃-ute opened the show. It was also on sale at Fanclub Events and at the Hello! Project store As of 2012, a Shinsei Naru Version of the song, from the album 2 ℃-ute Shinsei Naru Best Album, is most commonly performed.