Betty's friend Jim just told her about a fabulous jazz concert he saw in NYC a couple of weeks ago. The players were all famous old dudes who had made their names playing with Miles Davis, John Coltrane, etc.
This description got Betty to thinking: what would an equivalent rock ensemble look like? The only condition is that the people be still alive.
Her first stab at an answer: Charlie Watts (drums), John Paul Jones (bass), Ron Wood (guitar), Roger Daltry (vocals, and because amazingly he was a sideman in the band he fronted!), and Clarence Clemons (tenor saxophone). The band could be called "The Rock Solids", and they'd probably pack the house.