Since Fifty Shades of Grey obviously wasn't steamy enough for moms everywhere, Beyoncé has added a sultry song to the film's soundtrack.
The singer dropped a remix to her 2003 hit song "Crazy in Love" on her YouTube channel Thursday. Snippets of the now super slowed-down and slightly sinister song have scored many of the Fifty Shades trailers.
Apparently, the 'B' in BDSM is for Beyoncé.
Fifty Shades of Grey hits theaters on Feb. 13, and the film's soundtrack -- also featuring a remix of the Beyoncé song "Haunted" -- will be released on Feb. 10.