Backstreet Boys showed off their singing prowess on The Tonight Show by joining Jimmy Fallon to perform Sisqo’s “Thong Song” as a barbershop quartet. Wearing matching outfits and hats, the group gave the song a serious rendition with careful harmonies and a few jazz hands. The band also sat down …
Read More »Watch Backstreet Boys and Jimmy Fallon Sing 'Thong Song' as a Barbershop Quartet
