McCartney was a hit solo album for Paul McCartney, but none of its tracks were released as a single. McCartney was still under the British idea that singles are stand-alone songs, not contained in albums, so that they can be strung together occasionally on EPs or “greatest hits” albums. So in February of 1971, “Another Day”, with its B-side of “Oh Woman, Oh Why”, was released as a single. The songs would not be included on the upcoming Ram album, which was released about three months later.
“Another Day” began as a track that the Beatles worked on for possible release on what would be the Let It Be album, but after the band’s break-up, it turned into something else. Just as she had co-written “Man We Was Lonely” before, Linda McCartney also co-wrote “Another Day”. While posters promoting the single listed it as “written by Mr. and Mrs. McCartney” and the single itself was credited to Paul & Linda McCartney, others found that suspicious.