Aug. 2, 2013 at 11:36 AM ET
Who knew children's musical instruments could be employed to make the summer's No. 1 hit sound ... well, even better? Jimmy Fallon, that's who. And when Robin Thicke passed through New York recently, Fallon pulled aside his "Late Night" house band The Roots and those now-familiar instruments for a duet of "Blurred Lines."
The video, just the latest in a series in which Fallon remakes popular tunes with children's play instruments, everyone tries to keep a straight face. By the way, they're really singing, not lip-synching!