Jones seems to have never turned down a duet opportunity — over the years, he's paired off with everyone form Gene Pitney to Aaron Lewis of Staind. But while the Wynette duets are justifiably celebrated, they shouldn't overshadow the brilliant collaborations preceding them with the even countrier Montgomery. Here a reunited couple fondly reminisces over the decision to split apart, and two huge voices manage to flawlessly harmonize without sacrificing any of their individual idiosyncrasies.

The standout is, of course, We must have been out of our minds - the song that George and Melba are best remembered for as a duo. "We Must Have Been Out Of Our Minds" is a song made famous as a duet by country music singers George Jones and Melba Montgomery. Originally released in 1963, the song became a Top 5 hit on the Billboard Hot Country Singles chart and a country music standard.

"We Must Have Been Out of Our Minds" was Montgomery's first national hit, and the most successful recording from the Jones-Montgomery duet pairing. The song reached No. 3 on the Billboard Hot Country Singles chart in July 1963, and spent 23 weeks in the chart's top 40, one of the longer runs of any country single released during the 1960s. Montgomery later remembered: "I was nervous as a cat! Not only was it my first major session, but it was with George Jones! George had been out roarin' the night before, and nobody even knew where he was until an hour before the session. When he finally showed up, he was in a really good mood, and the whole thing came off really well."

Jones remained quite proud of the work he did with Montgomery: "I had giant records years later with Tammy Wynette, and there were many other successful duet partners, such as Porter Wagoner and Dolly Parton and Conway Twitty and Loretta Lynn. I'm not saying Melba and I were the first to sing male-female duets in country music because we weren't. And I'm not saying we were the best. But Melba said recently that she thinks we popularized the male-female format, and I agree."