Complex sentence: Barrington "Bo" Henderson is an African-American R&B singer, formerly a member of the R&B groups Lakeside, he also did a one year stint in The Dramatics, before becoming the lead singer of The Temptations from 1998 to 2003.
Split into simpler sentences: Barrington "Bo" Henderson is an African-American R&B singer. Formerly a member of the R&B group Lakeside, Henderson also was a member of The Dramatics for a year before becoming the lead singer of The Temptations from 1998 to 2003.