Backstreet Boys Do “If I Knew Then” On ‘Lopez Tonight’

Ah, Backstreet Boys—they’re like your old high school friends you hardly ever see anymore in person, but still get updates from via Facebook. Only in this case Facebook is last night’s episode of Lopez Tonight, and there’s no Kanye West standing on a table. No matter, the Boys are still masters at setting the girls off screaming. Head below to catch Brian, A.J., Howie and Nick performing their latest single “If I Knew Then,” their third single from seventh album This Is Us.

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