Demi Lovato is voicing support for same-sex marriage in a new web video for the Human Rights Campaign. Billboard reports that the singer is the new face of a re-launch of the Americans for Marriage Equality campaign. "I believe that love comes in all different shapes, sizes and colors," Lovato says in the 45-second clip. "So whether you're LGBT or straight, your love is valid, beautiful and an incredible gift." This isn’t the first time Lovato has voiced her support for LGBT community. Her recent video for “Really Don’t Care” was shot at the Los Angeles Pride Parade last month, where the singer served as the Grand Marshal.