Confirmation:
"Los Angeles Times" 23 Aug 1990 (Mike Boehm) - "Tour itineraries released by their record companies list an Oct. 27 date by Billy Idol and Faith No More at the Pacific, although the amphitheater has not yet publicly announced the show."
"Orange County Register" 2 Sep 1990 (Cary Darling) - "Pacific Amphitheatre The hot ticket on the hard rock circuit is going to be Billy Idol and opening act Faith No More on Oct. 27 at this 18,000-capacity venue."
"Orange County Register" 14 Sep 1990 (Cary Darling) - "Billy Idol brings his snarl into Costa Mesa's Pacific Amphitheatre Oct. 27. Opening for him is Faith No More."
LA Weekly, 21-27 September 1990, page C63 - 7:30pm