WrestleMania 23
In front of a record-setting crowd in Detroit's Ford Field, Mr. McMahon had his head shaved completely bald by his rival, Donald Trump, after Bobby Lashley defeated Umaga in an unforgettable bout dubbed the Battle of the Billionaires.
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Matches

ECW World Champion Bobby Lashley (Donald Trump) def. Intercontinental Champion Umaga (Mr. McMahon)
Undertaker def. Batista (New World Heavyweight Champion)
Women's Champion Melina def. Ashley
WWE Champion John Cena def. Shawn Michaels
Mr. Kennedy wins the Money in the Bank Ladder Match
The Great Khali def. Kane
ECW Originals def. New Breed