Twenty is the thirteenth studio album by American R&B group Boyz II Men. The album was released in the United States on October 25, 2011. The first single was "More Than You'll Ever Know" featuring Charlie Wilson. As of September 2011, the single was the most added song to radio sets on urban adult contemporary radio stations. The album featured 13 new material songs and nine rerecorded Boyz II Men classics. The album's title, and it's inclusion of older tracks remastered, is as a celebration of the groups' 20th anniversary since their debut in 1991 with Cooleyhighharmony. It was produced Tim & Bob, Babyface, Jimmy Jam and Terry Lewis, and Teddy Riley. The album debuted at number 20 on the Billboard 200, selling 18,400 copies in its first week.