Tommy Clufetos is an American session drummer most noted for his work with Black Sabbath during their Black Sabbath Reunion Tour, which highlighted their new album 13. He also toured with them on their final tour. Clufetos is also the drummer for vocalist Ozzy Osbourne as well as the supergroup L.A. Rats.

13 is the nineteenth and final studio album by English heavy metal band Black Sabbath. It was released on 10 June 2013 through Vertigo Records, acting as their first studio album in 18 years following Forbidden (1995). It was the band's first studio recording with original singer Ozzy Osbourne and bassist Geezer Butler since the live album Reunion (1998), which contained two new studio tracks. It was also the first studio album with Osbourne since Never Say Die! (1978), and with Butler since Cross Purposes (1994).