Caught her show quite by accident in 1998 in a street concert at Disney downtown. She was in top form. I was with a couple of gay friends who were completely in thrall to all the tunes. We sang, we danced, we got three encores!
After a successful career in Europe, Summer started as a back up singer for Three Dog Night in the states. She moved on and up when the disco craze started in the 70's. I polled friends for the most remembered "Big Song" and got:
MacArthur Park Love to Love You Baby Last Dance She Works Hard For the Money
For my money, my favorite was the wistful... "On the Radio". Below. Enjoy.