Hot Stuff! Watch Michelle Williams Steam Up My Week With Marilyn with the Irving Berlin Classic 'Heat Wave'

Oscar nominee Michelle Williams is channeling late screen legend Marilyn Monroe in the new film My Week With Marilyn opposite Tony winner and soon-to-be Les Miserables star Eddie Redmayne. Monroe was no stranger to show tunes having starred in movie musicals like Gentlemen Prefer Blondes. Now Williams is getting to show off her own song and dance skills in the new film by singing the Irving Berlin classic "Heat Wave," which Monroe performed in 1954's There No Business Like Show Business. While Williams' version is quite different from what appeared in the original film, there's no denying she has plenty of sex appeal! Take a look below at a preview of Williams rendition of the song, then check out Monroe's own sultry version. Be sure to catch My Week With Marilyn in theaters November 23.