Seamus Dever and Jon Huertas Rap Warren G's "Regulate" at UNICEF's Playlist for the A-List (VIDEO)

Credit: 5min

Check out Castle stars Seamus Dever and Jon Huertas getting down with their bad selves at UNICEF's Playlist for the A-List karaoke event in Los Angeles on March 15, 2012. The vocals are awesome, but what we're really digging are Seamus's sweet dance moves. Get it!

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