Taylor Swift's “Shake It Off” was inspired by how she'd learned to deal with all the false rumors that circulated about her. "The only thing we can control is our reaction to that ,” said Swift. "You can either let it get to you … [or] you just shake it off."
"Sloop John B" is a traditional West Indian folk song, and it was a huge hit for The Beach Boys in 1966. They tweaked the lyric, "This is the worst trip since I've been born" to "...I've ever been on" as a wink to acid culture.