Canadian A cappella artist Mike Tompkins may not be a household name just yet, but he's quickly developing into an internet sensation. Using nothing more than his voice, he's recorded viral hit covers of songs such as Katy Perry's 'Teenage Dream,'  Taio Cruz's 'Dynamite,' and Miley Cyrus' 'Party in the U.S.A.'

His latest release is a cover of Demi Lovato's 'All Night Long' -- and it's so good that it caught the attention of the original track's producer, Timbaland.

Timba called out Tompkins via Twitter, telling him, "yo @Mike_tompkins u dope as hell 4real" and exhorting "all demi lovato fans check dis." He noted, "all the music is done wit his mouth no instrument."

He has a point -- Tompkins' take on 'All Night Long' is pretty dope, retaining the song's insistent hook while showing off his flair for recreating full band arrangements without ever touching an instrument. To hear the full-length track, you'll have to download it from iTunes, but you can get a feel for it by watching the video below:

Check Out Mike Tompkins Cover of Demi Lovato's 'All Night Long'