Home Videos Jonn Hart – Hammertime (Ft. Nef The Pharoah & Clyde Carson) (Music... You probably remember Jonn Hart from his hit single ‘Who Booty’ from 2012. If you haven’t kept up on him since then, he’s been steadily releasing solid Bay Area R&B tunes over the years. This past week, Jonn released an absolutely blapper titled ‘Hammertime’ featuring Nef The Pharaoh & Cylde Carson. This track honestly sounds like a West Coast anthem to me. Watch the music video for ‘Hammertime’ above.