"Can't Believe" is a song by American recording artist Faith Evans with featured vocals from fellow American R&B singer Carl Thomas. It was written and produced by P. Diddy and Mario Winans for Evans' third studio album, Faithfully (2001), and is built around a sample of "Phone Tap" as performed by the Firm and penned by Nas, Anthony Cruz, Chris Taylor, Jermaine Baxter, and Dr. Dre.

"Can't Believe" also appeared on P. Diddy's third studio album, The Saga Continues... (2001), and was released as the first single from Evans' album in April 2001. Upon its release, it reached number 54 on the US Billboard Hot 100 and number 14 on the US Billboard Hot R&B/Hip-Hop Singles & Tracks chart. An accompanying music video was filmed by director Chris Robinson in 2001.

Personnel Pesonnel are adapted from the liner notes of Faithfully. Executive production – Sean "Puffy" Combs Associate executive production – Harve "Joe Hooker" Pierre Instruments – Mario "Yellow Man" Winans Mixing – Rob Paustian Production – Mario "Yellow Man" Winans, Sean "P. Diddy" Combs Recording – Rob Paustian

Charts Weekly charts Chart (2001)Peakposition

Year-end charts Chart (2001)PositionUS Hot R&B/Hip-Hop Singles & Tracks (Billboard)44

References