“Feeling Good” (also known as “Feelin’ Good”) is a song written by Anthony Newley and Leslie Bricusse for the 1964 musical “The Roar Of The Greasepaint – The Smell Of The Crowd” and has since been recorded by many artists, including Muse, Sammy Davis Jr., Bobby Darin, Traffic, Michael Bublé, The Pussycat Dolls, George Michael, John Barrowman, John Coltrane, Toše Proeski, Frank Sinatra Jr., and Adam Lambert. Perhaps the most famous version was recorded by Nina Simone, and first appeared on her 1965 album “I Put A Spell On You”.