Members of the Delta Sigma Phi fraternity of Transylvania University created quite an impressive rendition of Taylor Swift's latest hit "Shake it Off," earning them an invitation to the star's next concert. The singer was so impressed with their lip-dubbed performance that she invited all of them to a free concert next year while adding, "Nailed it, bros!" in her share of the video.

The fraternity members indeed nailed it, as they shot the entire song in a few takes while dancing around their dorms to Taylor Swift's song. A fraternity brother named Skyler Slone told the local news in an interview that it only took them a couple of hours to make the video, including the rehearsal. He said that it has been crazy for the group to see how much their performance has blown up so far. The video has garnered over a million views as of Saturday.

Taylor revealed recently to Rolling Stone Magazine that she has not been seeing anyone since her split with Harry Styles of One Direction in early 2013. She said that she has been actively avoiding dating since the public eye has been scrutinizing her romantic activities, even calling it a national pastime. According to the singer, she is not comfortable providing that kind of entertainment anymore.

Anyway, both Swift and members of Delta Sigma Phi are excited over the viral video and upcoming concert. A screenshot of Swift's tweet was shared by a member with the Instagram username @the_dantheman, saying that it was the "best day" of his life.

The clip featured the fraternity brothers enjoying themselves in a single-shot video showing their best dance moves inside their bedrooms and down the dorm hallway, all while jamming to the chart-topping hit "Shake it Off."