Demi Lovato's letting her fans 'speed up time' and unlock her new album Demi through an online Twitter campaign before it's official release next week.

One of the songs that has been unlocked is her collaboration with Cher Lloyd, called "Really Don't Care."

When Demi recently stopped by Elvis Duran and the Z100 Morning Show, she told Elvis, “I did a song with Cher Lloyd. She’s so sweet! It’s kind of a girl anthem — it has a lot of attitude and a lot of sass. I just thought she would be perfect on it!”

Check it out below & tell us what you think of it in the comments section below!