Sonny & Cher
From Zappa Wiki Jawaka
Salvatore Phillip "Sonny" Bono (February 16, 1935 – January 5, 1998) and
Cher (born Cherilyn Sarkisian; May 20, 1946)
A number of session artists and backing musicians of the pop duo Sonny & Cher (mentioned in the sleeve notes of Freak Out!) have found their way onto Zappa recordings, such as Steve Mann & Mac Rebennack.