The band added guitarist Luther Grosvenor and organist/pianist Keith Emerson, who stayed for a brief period of time before leaving and forming The Nice.

Subsequently, the VIPs changed their name to Art, for the album Supernatural Fairy Tales and then, with the addition of American keyboardist Gary Wright, to Spooky Tooth[3] in 1968.

Although Ridley rarely sang lead vocals, his deep baritone was frequently used to provide contrast with the higher tenors of Marriott and Frampton.

Ridley made several songwriting contributions, including "Sucking on the Sweet Vine" on Humble Pie, "The Light of Love" on Town and Country, and "Big George" on Rock On.

On 14 April 2001, he appeared with Jerry Shirley, Peter Frampton and Clem Clempson, billed as a one off Humble Pie re-union, at a Steve Marriott Tribute Concert.