In 1989, Thayer began working for Kiss, co-writing the themes "Betrayed" And "The Street Giveth & The Street Taketh Away" of the album Hot In The Shade (1989). Tommy Thayer replaced guitarist Ace Frehley when leaving Kiss in 2002, He used Frehley's makeup and became the "Spaceman". Tommy Thayer recorded one live album, "Kiss Symphony: Alive IV" (2003) and two studio albums with the band. "Kiss Klassics" (2008), and "Sonic Boom" (2009).