There's even a dispute over the exact title. Yet “It's a Small World,” also known as “It's a Small, Small World” and “It's a Small World (After All),” is very likely the most played song in music history — nearly 50 million times.

“Let It Go” is an anthem of self-acceptance, the story of somebody learning to embrace the thing that makes them different.

"Best Day of My Life" is a song by American pop rock band American Authors, released on March 19, 2013, by Mercury Records and Island Records as the lead single from their third extended play, American Authors (2013), and the second single from their debut studio album, Oh, What a Life (2014).

Neil Young's 1992 "Harvest Moon" is the followup to his most commercially successful album "Harvest" - 20 years later. "Harvest Moon" was recorded with many of the same original musicians who appeared on "Harvest", such as Ben Keith, on pedal steel guitar, and Linda Rondstadt and James Taylor on backing vocals.