"Watching Rainbows" is an unreleased song by the Beatles recorded on 14 January 1969 during the Get Back sessions at Twickenham Studios.
No bass guitar was present as McCartney was filling in for the absent George Harrison, who had temporarily left the group at that stage of the sessions.
[3][4] The song features Paul McCartney on lead guitar because George Harrison had temporarily left the group at this stage of the sessions.
[6][5] It begins with McCartney playing the lead guitar part from "I've Got a Feeling", while Lennon joins in and improvises three verses from "I Am the Walrus".
[6] In a positive review, David Marchese of Vulture called the song "another playful, jammy track from the Let It Be sessions".