* EarWorm - "Love Song" and "King of Anything"
** "Gonna Get Over You" can qualify too.
* SignatureSong - "Love Song" though people also associate her with "King of Anything" and "Brave".
* SleeperHit / SuspiciouslySimilarSong - "Brave" became one after critics accused KatyPerry of copying the song for her single "Roar".