Conversation so far:
who sang it's so hard to say goodbye to yesterday
It's So Hard to Say Goodbye to Yesterday was recorded in an a cappella rendition by contemporary R&B Motown group Boyz II Men
who sang it's so hard to say goodbye to yesterday originally
Written for the 1975 film Cooley High, It's So Hard to Say Goodbye to Yesterday is performed by Motown artist G.C. Cameron.
who wrote it's so hard to say goodbye to yesterday
It's So Hard to Say Goodbye to Yesterday is an R&B song written by Motown husband-and-wife songwriting team Freddie Perren and Christine Yarian.
did the boyz 2 men version of it's so hard to say goodbye to yesterday chart
Boyz II Men's It's So Hard to Say Goodbye to Yesterday peaked at number two on the Billboard Hot 100 and reached number one on the Hot R&B Singles chart

Question: who was featured on the video
Self-contained rewrite: who was featured in the boyz 2 men's video of it's so hard to say goodbye to yesterday