"Mrs. Vandebilt" is a song by the British–American rock band Paul McCartney and Wings from the album Band on the Run. The track was not issued as a single in the UK or US, but was a single in Continental Europe and Australia.

"Bluebird" is a song written by Paul and Linda McCartney and originally performed by the British rock band Wings, released on their 1973 album Band on the Run. According to author John Blaney, it was written during a vacation in Jamaica. However, author Vincent Benitez claims the song was written as early as 1970 or 1971, noting that Paul and Linda sang the song during a live interview in New York City in 1971. In Continental Europe it was also released as the B-side of the "Mrs. Vandebilt" single.