They are such workhorses and so professional. Also this Rehearsal was much more nicer. When Diana Ross reunited with Marry Wilson & Cindy Birdsong on Motown 25 in 1983, she didn't even rehearse. They showed The Supremes then Diana Ross as a solo artist then shortly after Mary & Cindy came on stage. Diana shoved Mary and folks were mortified. They never shared a stage together after that and only two years before she died she and Diana Ross made peace. With The Temptatons it was very hard when they did a reunion tour in 1982 because David Ruffin & Dennis Edwards were in the group at differnt times who never sang on certain songs together. David would die of a Drug Overdose while Dennis would die of Cancer.