The Stand Up To Cancer event is happening tomorrow, and it is going to be a celebrity-filled night. As we reported last month, several female artists collaborated on a song that serves as an anthem for the cause.

It's called Just Stand Up, and it features Mariah Carey, Beyoncé, Mary J. Blige, Rihanna, Fergie, Sheryl Crow, Melissa Etheridge, Natasha Bedingfield, Miley Cyrus, Leona Lewis, Carrie Underwood, Keyshia Cole, Leann Rimes, Ashanti and Ciara.

What do you think of the song?

http://music.hollyscoop.com/rihanna/first-listen-to-just-stand-up_1084.a...