Who is not an original member of the R&B singing group, New Edition?

New Edition is an American R&B/pop boy band formed in Boston in 1978. The group reached its height of popularity during the 1980s. They were the progenitors of the boy band movement of the 1980s and 1990s and led the way for groups like New Kids on the Block, The Boys, Boyz II Men, Hi-Five, Backstreet Boys and NSYNC. During the group's first bout of fame in 1983, its members were Ricky Bell, Michael Bivins, Bobby Brown, Ronnie DeVoe, and Ralph Tresvant. Early hits included "Candy Girl" and "Mr. Telephone Man." Eventually Bobby Brown left the group.

The group continued for a time with its remaining four members, but eventually recruited singer Johnny Gill, who would be introduced on their 1988 album Heart Break. The group went on hiatus in 1990, while its various members worked on side projects, such as the group Bell Biv DeVoe. Gill and Tresvant also recorded successful solo albums. All six members of New Edition reunited in 1996 to record the group's sixth studio album Home Again.