"It's a Good Day" is a popular song written by Peggy Lee and her first husband Dave Barbour and published in 1946. Peggy Lee's recording reached the Billboard charts in January, 1947 peaking at No. 16. From Wikipedia
Meghan Markle’s Instagram reel highlights two days of park adventures set to Peggy Lee’s “It’s a Good Day,” featuring the Sussexes on attractions, character greetings, a themed birthday cake
