Have you ever wondered what music would accompany Christian Grey and Anastasia Steele on their journey toward everlasting love? Or, you know, what they would play in the car during that one particularly naughty scene? Well, now you do.

Fifty Shades of Grey author E L James has curated her own playlist -- and it pretty much includes every song that you think it should. From Britney Spears' "Toxic" (which James writes would play as Christian and Anastasia "drive to chase the dawn") to Bruce Springsteen's "I'm On Fire" (which Anastasia blasts on her drive back to Washington State University) and Kings of Leon's "Sex of Fire" (do we really need to explain this one?) James' soundtrack is every bit as gratifying as Christian Grey himself.

The Fifty Shades of Grey book trilogy follows Anastasia Steele, a headstrong but innocent recent college graduate, as she navigates an erotic sexual relationship with complicated billionaire businessman Christian Grey. Not only did the series reign over the New York Times best-seller list, but before you could say "safe word," the movie rights were also snatched up by Universal Pictures and Focus Features.

In more Fifty Shades of Grey news, the casting search for the perfect leading pair to play Christian and Anastasia is still in full-swing. "Harry Potter" actress Emma Watson recently nixed rumors that she would play the WSU college student in the movie adaptation of the best-selling novel. Meanwhile, "Vampire Diaries" star Ian Somerhalder has said he would "absolutely" be up for portraying Christian Grey.

"It could be very, very amazing. I have the book and I just started reading it," he said in April. "That would be a pretty incredible thing, and hopefully that could pan out," he said. "Beyond the shadow of a doubt, I think that would be a phenomenal opportunity!"