Project.R (プロジェクト・ドット・アール, Purojekuto Dotto Āru) are a Japanese musical ensemble established by Nippon Columbia and Toei Company to perform on the soundtracks for the Super Sentai Series beginning with Engine Sentai Go-onger.
For the various series, Columbia has taken various popular vocalists of anime songs and brought them together in a group called Project.R (the "R" stands for "Ranger").
These artists are Shinichi Ishihara, MoJo, Akira Kushida, Takayuki Miyauchi, Koji Onoda, Ichirou Mizuki, and Make-Up.
The single of the opening and ending themes of Engine Sentai Go-onger reached #4 on the Oricon Weekly Rankings Charts in its first week, selling 22,000 records.
It is the first theme song single for any Super Sentai series to reach the Oricon's top ten list, reaching #3 on its first day of sale, March 19, 2008, and remaining in the top 20 for four weeks.