The late, great Olivia Newton John was not only a heartbreaker but had an incredible voice. Likewise, Dolly Parton is a force of nature in the music world.

But, unknown until very recently, these two powerhouses collaborated in singing Dolly's smash song "Jolene." They just released the video. All I will say is that it will break the strongest person and it left me weak in the knees.

Open thread below...