'Play the Game' featured Andy Gibb singing backing vocals alongside the founding members. Frederick was quite impressed with the result, so they may have ended up on the final cut, unless of course lyrics changed or something like that.
Oh okay, sorry, DLYH was mentioned before :blush:
Then, optionally: the dialogue snippets from 'Flash Gordon' and 'Highlander', and since there's a mention of C-lebrity I throw in the Barcelona album. :D