Written for the widely forgotten 1965 Broadway musical The Roar of the Greasepaint – The Smell of the Crowd, “Feeling Good” has been covered by Nina Simone, Bobby Darin, Frank Sinatra, George Michael and countless others. Muse recorded a popular version for their 2001 LP Origin of Symmetry, which has recently gotten a lot of play in America in a commercial for Virgin Airlines.
and here is the original: