Watch "Just Stand Up!" is a song featuring the vocals of an all-star group of pop/R&B/rock performers, including Mariah Carey, Beyoncé, Mary J. Blige, Rihanna, Fergie, Sheryl Crow, Melissa Etheridge, Natasha Bedingfield, Miley Cyrus, Leona Lewis, Carrie Underwo celebrity video.
6 Embarrassing Celebrities
