Mr. and Mrs. Used to Be is the first collaborative studio album by American country music singers Ernest Tubb and Loretta Lynn. It was released on August 2, 1965, by Decca Records.

Loretta Lynn was an American country music singer and songwriter. In a career spanning six decades, Lynn released multiple gold albums. She had numerous hits such as "Hey Loretta", "The Pill", "Blue Kentucky Girl", "Love Is the Foundation", "You're Lookin' at Country", "You Ain't Woman Enough", "I'm a Honky Tonk Girl", "Don't Come Home A-Drinkin' ", "One's on the Way", "Fist City", and "Coal Miner's Daughter". The 1980 musical film Coal Miner's Daughter was based on her life.