Jade Collins (b. August 23, 1999), better known by his stage name Since99 (formerly CurvedSince99), is a rapper coming out of Ann Arbor, Michigan.

Since99 is most known for his breakout single “Immaculate” featuring BasedNas, which gained traction when big pages like No Jumper tweeted out the song.

On July 24, 2020, Since99 released his second project 99 Overall.

In December 2020, he dropped his third overall project Carbon Copy.