The Folks over at the A.V. Club are giving away passes to Summerfest in Milwaukee at which Lupe Fiasco will be one of the performers. The passes are good for the full length of the festival; June 27th-July 8th. In addition to those, they are also giving away roundtrip Amtrak tickets to get there.
To enter, simply send an email to firstname.lastname@example.org and put "summerfest" in the subject line.