Harley-Davidsons 105th Anniversay celebration

I don't know why, but Milwaukee is clearly the summer party capital of the world:

list of people performing at this years event Aug 29th and 30th

Rock out with Harley-Davidson and friends on four main stages at Milwaukee’s world famous Summerfest Grounds, Friday and Saturday night, 12PM-11PM.Musical acts* include:
ZZ TopDaughtryThe Black CrowesDierks BentleyPeter FramptonLos Lonely BoysBlue Oyster CultWarFoghat
Joan Jett & The BlackheartsPuddle of MuddGary AllanBuddy GuyBlind MelonCameoDr. JohnBlack Rebel Motorcycle ClubThe Crave
We are thrilled to welcome Bruce Springsteen and the E Street Band to Milwaukee to celebrate the 105th Anniversary with our family and friends.

There is also a HOG (Harley Owners Group) That will have Aerosmith, Kidd Rock and more...