Headcat is an American rockabilly supergroup formed by vocalist/bassist Lemmy (of Motörhead), drummer Slim Jim Phantom (of The Stray Cats) and guitarist Danny B. Harvey (of Lonesome Spurs and The Rockats).
The band was formed after recording the Elvis Presley tribute album by Swing Cats A Special Tribute to Elvis in July 1999 to which the future bandmates all contributed. After recordings were finished they stayed at the studio and Lemmy picked up an acoustic guitar and started playing some of his old favorite songs by Johnny Cash, Buddy Holly, and Eddie Cochran. The rest of the guys knew them all and joined in. The name of the band was created by combining the names Motörhead, The Stray Cats, and 13 Cats, which resulted in Headcat.