03/14/2013 08:28 am ET

Justin Timberlake, Michael McDonald & Jimmy Fallon Perform Rousing 'Row, Row, Row Your Boat' (VIDEO)

We're not surprised that Jimmy Fallon had a Michael McDonald impression in his back pocket (he probably has an impression of you in his back pocket, reader, so watch out), but last night on "Late Night," musician-in-residence Justin Timberlake proved that he didn't do a half-bad mimicry of the Doobie Brothers singer, either.

But you know who did him best of all? Michael McDonald. The blue-eyed soul crooner joined up with Fallon and Timberlake to perform a yacht rock-tastic version of "Row, Row, Row Your Boat," before launching into a raucous original melody with The Roots about the joys of rowing one's boat.

Check out the clip above, and be sure to watch "Late Night" tonight and tomorrow for the final two installments of "Timberweek." And in case you missed it, here's last night's barbershop quintet performance of "SexyBack."



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