How about the FLOS touring with Diana Ross as opening act? That could free up Ross' set list to do less Supremes songs [[though she obviously can't skip them entirely) and more of her solo songs. Also a FLOS show would relieve audiences of being subjected to Rhonda and her preachy act. Though I imagine Rhonda being on tour with her mom is one reason why Diana is still willing to go out there to perform as she family with her on the road.