"Sun King" is a song written primarily by John Lennon, but credited to Lennon–McCartney and recorded by the Beatles for their 1969 album, Abbey Road. It is the second song of the B-side's climactic medley.
John Lennon - lead, harmony, and backing vocals, guitar, maracas
Paul McCartney - harmony and backing vocals, bass guitar, tape loops
George Harrison - harmony and backing vocals, lead guitar
Ringo Starr - drums, bongos, tambourine
George Martin - Lowrey organ