On his website, Jolij goes on to further define the formula of what makes a happy song happy: "The pattern was very clear – the average tempo of a ‘feel good’-song was substantially higher than the average pop song. Where the average tempo of pop songs is around 118 BPM, the list of feel good songs had an average tempo of around 140 to 150 BPM."
The Boston Globe puts it all in layman's terms for us: "Dr. Jolij decided on a formula that combines lyrics, tempo, and key to calculate the strength of a song’s feel-good nature."
Mostly comprising 80s new wave, 70s rock and disco, and obviously a song by Queen, this list undoubtedly doubles as the greatest karaoke playlist ever. And because feeling good is nice, here is the entire playlist for your listening pleasure: