Bio is the tagger name of Wilfredo Feliciano (born April 20, 1966). He started painting graffiti on New York City subways in 1980, and is one of the founding members of the TATS CRU.
The "cru" was formed along with Brim and Mack originally known as T.A.T. Cru. Bio has painted for many major movies and music videos and has exhibited his work throughout the world.