Update: You are correct viv. I checked The Penguin's discography:
http://discog.fleetwoodmac.net/songs...442&perfid=969
"Jimmy Iovine (Produced By), Waddy (Robert) Wachtel (Guitar),
Joe Walsh (Guitar), Kenny Edwards (Bass), Steve(n) Jordan (Drums), Bill(y)/William Payne (Synthesizer), Sharon Celani (Background Vocals), Lori Perry-Nicks/Perry/Nicks (Background Vocals), Marilyn Martin (Background Vocals), Stevie Nicks (Vocals)"