Petit Best 11 is the 11th volume of the Petit Best series, which are annual compilations released at the end of the year that feature best hits from the artists of Hello! Project during that year, with an occasional remix or new song included. It was be released on December 15, 2010 on zetima label.
This album features 3 tracks previously unreleased on CD. Track 11 was used in a CM for "Nissin Noodles" and is a parody of Ren'ai Revolution 21, Track 12 is a song that was used as the opening theme to Kaitou Reinya which starred Tanaka Reina, and Track 13 is a remix of S/mileage's 6th single.