WATCH: Jimmy Fallon And The Backstreet Boys Redo "The Thong Song"

2019 iHeartRadio Music Festival And Daytime Stage

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Jimmy Fallon brought back his barbershop quartet The Ragtime Gals for a performance on Tuesday's Tonight Show.

The gals happened to be The Backstreet Boys.What followed was a stirring rendition of Sisqo's The Thong Song. Jimmy Fallon and the backstreet boys wore matching outfits and hats and gave a serious rendition with harmonies and a few jazz hands.

But it didn't end there, the Backstreet Boys were also on the show to promote their extended DNA tour. They also discussed the history of Backstreet Boys and reflected on the past 26 years

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