[3] A version of the song was recorded at the time with McCartney on lead vocal and remained unreleased until November 2014 when it was included as a bonus track on the remastered album.
[2][4] In each verse, the singer sings about some aspect of his lonely life, including watching a sunset by himself or playing cards alone.
[5] Allmusic's Donald Guarisco states that "English sings the song with gusto, moving back and forth between a full-throated belting style and a gentle croon with ease.
"[5] Chip Madinger and Mark Easter, while saying English has a "passable voice," state that "Must Do Something About It" is "an agreeable if not particularly memorable song.
"[3] However, Allmusic's Guarisco calls the song a "nice little ballad whose pop undertones allow it to stick in the listener’s mind.