Taylor Swift Brings Out Fetty Wap for 'Trap Queen' Cover in Seattle

Daniel Boczarski/Getty Images for TAS
Taylor Swift performs during The 1989 Tour at Soldier Field on July 19, 2015 in Chicago.

Taylor Swift said "hey what's up hello" to another 2015 Song of the Summer contender in Seattle Saturday night (Aug. 8) when she brought out breakthrough rapper Fetty Wap for a jubilant duet on his No. 2-peaking Hot 100 hit "Trap Queen."

While the blockbuster pop star might not be an expert on cooking pies with her baby, she's certainly adept at cherry-picking the summer's hottest artists to join her on her 1989 Tour. Swift has already shared the stage with Jason Derulo, The Weeknd, Nick Jonas and many more artists with ubiquitous summer hits.

Taylor Swift's 1989 Tour: See All of Her Special Guests

Check out some footage of Swift getting fly with her special guest below (courtesy Karen Civil) and keep your fingers crossed a Demi Lovato "Cool for the Summer" duet is in the works.