Steve Wynn All Shook Up Over Looming Nuptials

4/26/2011 1:40 PM PDT BY TMZ STAFF
Steve Wynn mocked his own wedding last Thursday in a faux ceremony where he dressed like the other king of Las Vegas.

Steve -- dressed as Elvis: The Later Years --  and bride-to-be Andrea Hissom road-tested their nuptials at Cupid's Wedding Chapel in Vegas.

The ceremony wasn't legal -- that will happen in grand fashion this weekend.