Rita Coolidge
Jennifer Warnes and Kenny Vance
Sun Ra
Bette Midler
Andrew Gold and Andrae Crouch
(I’ll add a name to this each day until the sequence is complete or someone gets it.)
Hey, I should’ve been updating this — I forgot because someone on the Ken Jennings board cracked it straightaway.
Answer:
The sequence is the musical guests for season finale episodes of Saturday Night Live. Full list can be pieced together from Wikipedia.