Derek St. Holmes is an American rock musician, best known as the lead singer and rhythm guitar player for Ted Nugent's early solo career. After splitting from Nugent in 1978, St. Holmes worked with various artists, most notably the Whitford/St. Holmes project with Brad Whitford, who had then recently parted ways with Aerosmith. He has also reunited with Nugent on several occasions.

Cat Scratch Fever is the third studio album by American rock musician Ted Nugent. It was released on May 13, 1977, by Epic Records. Vocalist Derek St. Holmes, who had left the band during the recording of the album Free-for-All, had come back for touring in 1976 and was again the principal lead singer on this album.