Graduation is the third studio album by American hip hop artist Kanye West. It was released on September 11, 2007 on Roc-A-Fella Records. Recording sessions for the album took place during 2005 to 2007 at Chung King Studios and Sony Music Studios in New York City and at Chalice Studios and The Record Plant in Los Angeles. It was primarily produced by West and DJ Toomp and features guest contributions from artists including Mos Def, Dwele, T-Pain, Lil Wayne, and Chris Martin of Coldplay. The album's cover artwork was designed by Japanese contemporary artist Takashi Murakami.