[2] Honors in several categories are presented at the ceremony annually by the National Academy of Recording Arts and Sciences of the United States to "honor artistic achievement, technical proficiency and overall excellence in the recording industry, without regard to album sales or chart position".
[3] Originally called the Best Country Vocal Performance, Duet, the award was first presented to Kenny Rogers and Ronnie Milsap at the 30th Grammy Awards in 1988 for the single "Make No Mistake, She's Mine".
[4] Alison Krauss holds the record for having the most wins in this category, with a total of five.
Among the most nominated are Emmylou Harris and Willie Nelson, both nine-time nominees.
Krauss was nominated eight times, while Dolly Parton was a seven-time hopeful.