Simplify the following text for a Grade 7 native English-speaking person.
Original: At the height of their early popularity in 1983 , the group consisted of Ronnie DeVoe , Ralph Tresvant , Bobby Brown , Michael Bivins , and Ricky Bell .
Simplified: The members of this group are Michael Bivins , Ronnie DeVoe , Ricky Bell , Johnny Gill , Ralph Tresvant and Bobby Brown .