Taylor Swift surprised fans in Dallas, Texas on Saturday when she brought rapper B.o.B on stage to perform his hit single, 'Airplanes.'

The 21-year-old took on the chorus of the song, which was originally sung by her pal and Paramore frontwoman Hayley Williams, while B.o.B rapped to a screaming sold-out crowd. “Had a night to remember in Dallas performing one of my biggest songs with the ever-so enchanting Taylor Swift,” the hip-hop star tweeted along with a photo from the show.

After the concert at Cowboys Stadium, Swift also gushed about the night and her memorable collaboration. “Tonight was like a dream," she wrote on Twitter. "That crowd.. The biggest indoor stadium in the world. And singing ‘Airplanes’ with B.O.B. !!!!!”

This isn't the first time Swift has shown her fondness for hip-hop. She's covered Eminem for fans, and invited the likes of T.I., Nicki Minaj and Usher to join her on stage during her successful Speak Now tour.

The country star will continue on her North American run through Nov. 22, when she wraps the tour in New York City. Fans of Swift can relive the concert experience when she releases her 'Speak Now World Tour Live’ CD/DVD on Nov. 21.

Watch Taylor Swift and B.o.B.'s Live Performance of 'Airplanes'