It has long been speculated that the Soundgarden song "Black Hole Sun" came from the name of a sculpture in Seattle, but according to their frontman Chris Cornell the title came from a phrase he misheard on the news. The band's name did come from a sculpture.
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."