If you have not heard Lambert, Hendricks, and Ross, you need to! Joni not only covered their version of "Twisted" but she also covered their version of "Centerpiece" later on Hissings of SUmmer Lawns! LH&R are OUTRAGEOUS. I first heard them in the 1970's when my sister came home from UCBerkeley one Chirstmas with a LH&R album. I listened to it nonstop. Later, I was playing the streets of Seattle as a street performer and heard Orville Johnson doing "Give Me That Wine!" from LH&R. I have found that knowing their work has been an interesting vehicle on more than a few occaisions. I made my son listen to them. LH&R is essential for all those interested in great vocals and arrangements. I always felt that Manhattan Transfer was a cheap man's LH&R.

And nobody has mentioned it here, but that is Cheech Marin doing the "that chick is crazy" part.

Also Bette Midler did an excellent version of Twisted, it is different than Joni's version...more "clubby..."