Even the greatest rock band ever, who were known as the Fab Four had a little recording room help from their friends once in a while.
According to Americansongwriter.com The Beatles succeeded for countless reasons, but their chemistry as four instrumentalists had a lot to do with it. For the vast majority of their songs, John Lennon, Paul McCartney, George Harrison, and Ringo Starr, with some production expertise from George Martin, made the magic in the studio without any outside help.
The 5 Best Guest Appearances on Beatles Songs https://americansongwriter.com/the-5-best-guest-appearances-on-beatles-…
Also, The Beatles Tease another Announcement: ‘There Will be an Answer’ The legendary British band's website and social accounts hints about additional releases?
https://www.billboard.com/music/music-news/the-beatles-tease-announceme…