American drummer currently living in Dripping Springs, Texas where he owns and runs his own recording studio, [[label:The Worm Hole]]. He is also credited with recording at [[label:Pat's Loft, Austin, Texas]], [[label:Pat's Garage]] and [[label:Pat's Place]] and with operating [[label:The Thrak Shack]]. Born: September 10th 1955 in Chico, California, USA. Married to [[artist:Deborah Mastelotto]].

Mastelotto has been in many bands, with his break coming as part of [[artist:Mr. Mister]]. Pat has also worked extensively as a studio session drummer. In this capacity he worked for [[artist:Martin Briley]], [[artist:Holly Knight]], [[artist:Scandal (4)]], [[artist:Al Jarreau]], [[artist:Pointer Sisters]], [[artist:Patti LaBelle]], [[artist:Kenny Loggins]], [[artist:Martika]] and [[artist:Danny Wilde]], as well as playing drums on the double platinum album '[m=243897]' by Canadian rock musician [[artist:Kim Mitchell]].