Bridge over Troubled Water is the fifth and final studio album by American folk rock duo Simon & Garfunkel, released in January 1970 on Columbia Records. Following the duo's soundtrack for The Graduate, Art Garfunkel took an acting role in the film Catch-22, while Paul Simon worked on the songs, writing all tracks except Felice and Boudleaux Bryant's "Bye Bye Love" (previously a hit for the Everly Brothers). With the help of producer Roy Halee, the album followed a similar musical pattern as their Bookends, partly abandoning their traditional style in favor of a more creative sound, combining rock, R&B, gospel, jazz, World music, pop and other genres. After filming Catch-22, Garfunkel returned and the duo recorded around 14 tracks, three of which were not featured in the album. The inclusion of a 12th track was long discussed but they eventually decided upon 11 songs. It was described as both their "most effortless record and their most ambitious." Bridge over Troubled Water was released on January 26, 1970 and several re-releases followed. The album was mixed and released in both stereo and quadraphonic. Columbia Records released a 40th Anniversary Edition on March 8, 2011, which includes two DVDs, including the politically themed TV special Songs of America (1969), the documentary The Harmony Game, additional liner notes and a booklet. Other reissues contain bonus tracks, such as the 2001 version, which covers the demo tapes of "Feuilles-O" and "Bridge over Troubled Water". Despite numerous accolades, the duo decided to split up, and parted company later in 1970.