What Is Life Lune ..." A version by Shawn Mullins was released as a single in 1999 and plays over the closing credits of the Adam Sandler movie "Big Daddy" (1999). Following Harrison's death, Japanese band the Collectors contributed a recording of "What Is Life" to the "Gentle Guitar Dreams" tribute album, released in May 2002. Classical guitarist Joseph Breznikar recorded a version of the song for his 2003 tribute album "George Harrison Remembered: A Touch of Class". In November 2004, Neal Morse released his recording of "What Is Life" on the special-edition version of his album "One". Les Fradkin included a cover
What Love Is Made Of three minutes and fifty-five seconds (3:55), "What Love Is Made Of" is an uptempo dance and house track that has been described as "rave-y" and "trance-y". Its instrumentation contains the sounds of pianos and synthesizers. Jordan Sargent of "Spin" observed that it continued the musical style first introduced in Katy's 2012 extended play (EP), "Danger EP", which was "straight-forward house". Idolator's Sam Lansky compared her performance in the song to recording artist Siobhán Donaghy. Critical response to "What Love Is Made Of" was generally positive: most critics noted Katy's vocal performance and commended its sound. Siân Rowe from "NME" was