Derrick Tribbett (born December 18, 1984), better known by his stage names Tripp Lee and Sinister, is an American musician who is the lead vocalist of heavy metal band Twisted Method.

He is the younger brother of Audiotopsy and Mudvayne lead guitarist Greg Tribbett.

[3][4] Tribbet formed a new band Bullet Saints and released a one and only single “Hell Bound” in 2013.

However, the show was canceled before airing because of Ryan Jenkins' involvement in the murder of his wife and suicide.

One of his other brothers Matt Tribbett was a drum technician for the American metal band Slipknot.