Listen to win a pair of tickets to the sold out Taylor Swift show Thursday, August 1 at the Wells Fargo Arena Des Moines courtesy of Billion Hyundai of Iowa City/qualified to win overnight stay at Sheraton West Des Moines + a pair of tickets to Blank Park Zoo in Des Moines courtesy of Greater Des Moines Convention & Visitors Bureau. Grand prize winner announced June 21. Just be caller #22 when you hear Taylor Swift's "I Knew You Were Trouble" weekdays from 9am-5pm.