This song was written by Bill Martin and Phil Coulter. It was first recorded by Cliff Richard in 1968. It was recorded at EMI Studios and produced by Norrie Paramor. It was released as a single in 1968 with High N Dry on the B-side. The single reached number one on the UK Singles chart. The Beatles played the song during The Beatles sessions in 1968. George Harrison’s 1970 song It’s Johnny’s Birthday was based on Congratulations.
Now Hear This: It’s Johnny’s Birthday – George Harrison (1970)