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Taylor Swift Backed It Up With Nelly As They Performed "Hot In Herre" In St. Louis

She wanted to take her clothes off.

Taylor Swift was turnt all the way up with Nelly as they both performed his smash hit, "Hot In Herre."

On Tuesday night, Taylor's 1989 Tour made a stop in Nelly's hometown of St. Louis--so it was only right that he came through and shut stuff down.

First, they performed his new single with Jeremih, "The Fix," before going into his most popular hit yet. Taylor's opening act, HAIM, also joined in the fun.

Check out the clips Taylor later tweeted out below.