7. Buick Open

The Buzz -- This much-anticipated golf competition is a PGA tournament event that's held each summer in nearby Grand Blanc. Many famous names in the world of golf descend on Warwick Hills Golf and Country Club during the Open to get their game faces on for the rest of the PGA Tour. Interestingly enough, the course's 17th hole is a lively spot that local residents turn into a large outdoor cocktail party during the tournament.