Anthony Charles Williams II (born (1975-05-16)May 16, 1975), better known by his stage name B.Slade, formerly known under the gospel moniker Tonéx (/ˈtoʊneɪ/ TOH-nay), is an American singer, songwriter, actor, multi-instrumentalist, rapper, dancer, producer, and activist from San Diego, CA. He has gone by various names and aliases, but his primary stage name of choice had for years been "Tonéx". In 2010, he began using the stage name B.Slade in order to rebrand himself.

Williams has released several hundred songs on dozens of albums over the span of his career, while producing several others for both gospel and secular artists. He has won six Stellar Awards, a GMA Award, and received 2 Grammy nominations: one for Best Contemporary Soul Gospel Album for his 2004 gold album, Out the Box and another in 2009 for Best Urban/Soul Alternative Performance for his single, "Blend", from his 2009 mainstream (albeit theoretically Gospel) album, Unspoken.

Known more for his gospel recordings, his musical efforts have been known to blend a smorgasbord of styles, including pop, R&B, jazz, soul, funk, hip hop, rock, Latin, electro, punk and trance. His primary influences include Stevie Wonder, Billy Joel, Prince, Michael Jackson, Walter Hawkins, David Bowie, and Janet Jackson. His distinct sound and eclectic style of music led him to give his music its own genre per se, calling it "Nureau".