Loretta Lynn with Jack White on Letterman: Portland, Oregon

We lost a great one this week, the legendary Loretta Lynn passed away at 90.

You can't say this about many entertainers--there will never be another like her. Married at 15, a mother of six, she recorded arguably her most popular album, Van Lear Rose, when she was in her 70s. Jack White and his band, the White Stripes, backed her up on that effort. 

One of the songs from that album, "Portland, Oregon," is a duet with White. And they performed it on David Letterman's "Late Show" in 2004.