If You Can Believe Your Eyes and Ears is the debut studio album by the American-Canadian folk rock vocal group the Mamas & the Papas, released on February 28, 1966 through Dunhill Records. It is the band's only album to reach number one on the Billboard 200. In the UK, the album was released as The Mama's and the Papa's on June 10, 1966, on RCA Victor, and reached number three on the Record Retailer Albums Chart. No. 1 on the Billboard 200 for 1 week, from the issue of May 21, 1966. Wiki link