Each of the three grand-prize winners will receive a trip for two to Chicago including three-day VIP Passes to the Lollapalooza festival, and $1,400 cash for meals and other spending cash. The prize is worth $5,500.
Entry into RadioShack's Headphones That Rock Sweepstakes is open to US residents aged 18 and up. Enter once before July 21, 2012.
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