It's a Hap-Hap-Happy Day
From Wikipedia, the free encyclopedia
"It's a Hap-Hap-Happy Day" is a popular song with music by Sammy Timberg and Winston Sharples and words by Al J. Neiburg.[1] It was featured in the animated feature film Gulliver's Travels in 1939.[1] It was a hit in the UK in 1940 during the Battle of Britain, having been played heavily on BBC radio.[2]