MILWAUKEE (CBS 58) -- Pick 'n Save is offering customers a chance to earn four free Summerfest tickets for every $50 spent using a Fresh Perks card in a single transaction.

The transactions must take place between June 30 and Aug. 10.

The tickets will be valid for use on Throwback Thursday, Sept. 9., and must be redeemed in person, with your receipt, at the Summerfest ticket windows from noon - 6 p.m. 

Throwback Thursday artists include Everclear, DJ Jazzy Jeff, Third World, The Grass Roots and more.

Customers can also enjoy 50% off all beverages (excluding frozen drinks, specialty coffee drinks and smoothies) on Throwback Thursday from noon to 6 p.m.

To see the full Summerfest lineup, click here.