'Pee Wee Sells The Playhouse' Episode HELP HELP!!!!

During the episode there was a flashback of memories from the playhouse, and obviously the song being played was "The Way We Were," but i cant find anything about who was singing the song. They even show the face of the singer many times. I like this cover of the song way way more than any other cover, and im dying to find out who is singing it during the flashback.

IF ANYONE CAN FIGURE THIS OUT, THIS WOULD BE AMAZING AND GREATLY APPRECIATED!!!

-Thanks