Taylor Swift And Nelly Performed 'Hot In Herre' And Life Was Perfect (Video)

Some songs -- like The Beatles’ “Hey Jude,” Whitney Houston’s rendition of “I Will Always Love You” and, of course, “Hot in Herre,” by St. Louis rapper Nelly -- are immortal.

When Taylor Swift’s 1989 World Tour stopped in Nelly's hometown, the rapper welcomed the pop star and HAIM with open arms and his massive 2002 hit.

In a clip shared by Swift on Twitter, fans cheered as Nelly brought “Hot In Herre” back with the headliner and her trio of sister-friends singing backup.

The video cuts out before the end of the song, but it is fair to assume people got so hot, they took their clothes off.