"Call Me Maybe" by Carly Rae Jepsen was the song of the summer in 2012 and a major meme. It got some help from her fellow Canadian Justin Bieber, who tweeted that it was "possibly the catchiest song I've ever heard."
"Friends In Low Places" by Garth Brooks was written by two Nashville songwriters after a meal in a local restaurant. One of them forgot his money, but said not to worry, "I have friends in low places. I know the cook."
Will.I.am, literally dreamt up "I Gotta Feelin'." Said the Black Eyed Pea: "Have you ever had a dream where there's a melody in your dream? I'll wake up out of my sleep and record that! 'I Gotta Feelin' was one of those songs."