Lady Gaga crowd surfs and kisses Justin Tranter

CHICAGO, IL - AUGUST 6: Lady Gaga performs as part of Lollapalooza 2010 at Grant Park on August 6, 2010 in Chicago, Illinois. (Photo by Tim Mosenfelder/Getty Images)Lady Gaga made her presence known at Lollapalooza this year.

During her set with The Semi Precious Weapons, the band’s frontman Justin Tranter and Gaga stage dived, crowd surfed and then locked lips.

Lady Gaga wasn’t exactly dressed for it (is she ever?) and fans got an eyeful!

Click here to see photos.