Dolores Moran the cover of such magazines as "Yank". She was given supporting roles in films, such as "Old Acquaintance" (1943) with Bette Davis. Warner Bros. attempted to increase interest in her, promoting her along with Lauren Bacall as a new screen personality when Bacall was cast alongside Humphrey Bogart in "To Have and Have Not" (1944). The film made a star of Bacall, but Moran languished, and subsequent films did little to further her career. "The Horn Blows at Midnight" (1945) gave her a leading role with Jack Benny and Alexis Smith, but her film appearances after this were sporadic, and
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