This seminal R&B trio was the first group to sport the new jack swing sound, essentially traditional soul vocals melded to hip-hop beats, with credit for the genre's invention going to founder, multi-instrumentalist, and super-producer Teddy Riley. Riley formed his first band, Wreckx-N-Effect, while still a teenager, with brothers Markell Riley and Brandon Mitchell; Guy followed a few years later in 1987. Its first incarnation featured vocalists Aaron Hall and Timmy Gatling. Their self-titled debut album was an instant smash, producing the R&B hits "I Like," "Groove Me," "Spend the Night," and "Teddy's Jam." Meanwhile, Riley found himself in strong demand as a songwriter and producer; in 1988, Riley produced Bobby Brown's Don't Be Cruel, the album that helped new jack swing cross over into the pop mainstream. Riley has also worked with Kool Moe Dee, Michael Jackson (Dangerous), Stevie Wonder, Keith Sweat, Jane Child, and SWV, among others. In between albums, Guy contributed songs to the soundtracks of Do the Right Thing and New Jack City.
By 1989, Guy was in turmoil; Riley's brother Brandon Mitchell was killed in a shooting, and the group became involved in an acrimonious split with manager Gene Griffin over money. 1990's The Future featured Hall's brother, Albert Damion Hall, in place of Gatling and spawned R&B hits in "Let's Chill," "Do Me Right," "D-O-G Me Out," and "Long Gone." However, by the time Riley and Guy finally started to attract media attention for their innovative and influential work, the trio had broken up. Riley concentrated on his production and songwriting career for several years before forming the band Blackstreet with vocalists Chauncey "Black" Hannibal, Dave Hollister, and Levi Little. The quartet released a self-titled debut in 1994. Aaron Hall released his solo debut, The Truth, in 1993; brother Damion followed in 1994 with Straight to the Point. Guy reunited in 1999, issuing Guy III early the following year.