which was their first album?
Who
Tony! Toni! Toné!
After their debut album "Who?" in 1988 
what is sons of soul? Third album by American R&B band Tony! Toni! Toné! when was it released? June 22, 1993
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Tony! Toni! Toné! [SEP] Introduction
After their debut album "Who?" in 1988 followed by "The Revival" in 1990, the group achieved their greatest commercial success with the double platinum certified "Sons of Soul" in 1993. Tony! Toni! Toné! disbanded after the release of their fourth album "House of Music" (1996), which critics cite as their greatest work.