Fetty Wap joined Taylor Swift onstage last night in Seattle, Washington to perform his hit single "Trap Queen."
Fetty Wap is one of the many guests that Swift invited to perform during her 1989 World Tour. Surprises appearances so far have includes Nick Jonas, The Weeknd and Jason Derulo.
Swift and Fetty Wap performed the song in front of an audience of 60,000 people at CenturyLink Field, according to Billboard.
Swift took to Twitter to thank the rapper for joining her onstage, calling the performance "unreal" and "the happiest moment of [her] life to date." Fetty Wap responded, "Thanks for having me buddy."
"Trap Queen," Fetty Wap's debut single, reached the number two spot on the Billboard Hot 100 and was certified platinum by the RIAA in the United States.
Swift's tour continues in North America until October 31 before it hits Asia and Australia later this year.