I got a question for you: "The Ballad of John and Yoko" is a song written by John Lennon, attributed to Lennon -- McCartney as was the custom, and released by the Beatles as a single in May 1969. The song, chronicling the events associated with Lennon's marriage to Yoko Ono, was the Beatles' 17th and final UK No. 1 single.

Answer this question: who sang the ballad of john and yoko?
Let's think first:
The important part for answering this question is: "The Ballad of John and Yoko" is a song written by John Lennon, attributed to Lennon -- McCartney as was the custom, and released by the Beatles as a single in May 1969.
Therefore, the answer is the Beatles.