Lauren Bacall on screen and stage of her training. Bacall's first film appearance was with Humphrey Bogart in the 1944 film "To Have and Have Not". The following year she married Bogart and went on to appear with him in "The Big Sleep" (1946), "Dark Passage" (1947), and "Key Largo" (1948). She also starred in comedies such as "How to Marry a Millionaire" in 1953 with Marilyn Monroe, "Designing Woman" in 1957 with Gregory Peck, and "Sex and the Single Girl" in 1964 with Natalie Wood. Bacall also appeared in "Murder on the Orient Express" (1976) and "The Shootist" (1976). In Bacall's later years, she appeared
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