Jesse Levi Valentine (born: March 28, 1993), better known online as F-777, is a Canadian electronic musician, known for creating music varying orchestral music to techno and dance. He spends his time making freelance soundtracks for games, such as Geometry Dash and Rolling Sky where some of his songs were apparent on their official levels.

He is one of the top artists on Newgrounds and was creating music as early as 2008 when he was posting to both YouTube and MySpace. Some early tracks include "Speedbreaker, "Before Mydnite," "Air Fantasy" and "Alone". He also created orchestration songs for the online game Dark Relic. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.