William Driftwood Jr., known professionally as Rezcoast Grizz, is a Native American rapper, singer & song-writer from the Apsaalooké Nation. His music ranges from rap to rock and R&B to emo-punk.

Rezcoast Grizz gained early online recognition from Adam22 of No Jumper in 2019 for his debut single One Hundred Hells. Adam22’s YouTube reaction video resulted in hundreds of thousands of views and a large social media following.

In May 2019, Rezcoast Grizz released his debut EP, Unwell and follow up single, Loner, which further boosted his following. In February 2020, Rezcoast Grizz released his single Water, which is by far his most popular song and gained him the most attention he has seen in his career thus far.