Toosii's showing he's the definition of a double threat ... because the rapper just committed to play football for Syracuse University as part of the 2026 signing class!
The performer revealed the big news by posting a set of photos on his Instagram account Monday, and he included a shot showing him posing next to Syracuse's head football coach, Fran Brown Jr.
Toosii -- legal name Nau'Jour Lazier Grainger -- really went the whole nine .