Taylor Swift welcomes Nelly onstage at second Scottrade concert

But he wasn’t the only surprise guest Taylor Swift welcomed on stage that same night, that same moment!

First, Swift brought Nelly out on stage at Scottrade Center on her last tour in 2011, which would appear to make her doing so again unlikely.

Along with the the Haim sisters – Este, Danielle, and Alana – Swift only sang parts of Nelly’s classic hit “Hot in Herre”.

A few 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.

Joining the two superstars for the performance were the girls of HAIM.

The Rolling Stones front man is one of a growing tally of famous faces including Steve Tyler, Lisa Kudrow, Lena Dunham, Whiz Khalifa and X who have joined Swift on her world tour.

Taylor’s good friends and support act Haim then also appeared on the stage, and the trio, all dressed in white, performed a dance routine.