*Kim Kardashian premiered her new song “Jam (Turn It Up)” on 102.7 KIIS FM with Ryan Seacrest today.

“I can’t believe it’s finally released!” says Kim on her blog. “This was definitely something that was out of my comfort zone, but I’m so glad that I met with The Dream and that we worked on this project together.”

Seacrest, who listened to it with Kim in the studio, said it was “fun! Makes me want to go somewhere. I want to be in a convertible with that cranked up.”

You’ll be able to buy Jam on iTunes later today, says Kim, adding that a portion of the proceeds from the sales of the song will be donated to St. Jude Children’s Research Hospital.

Listen below.