Happy Mother's Day to Brandy!The songstress, mom to 17-year-old Sy'rai, is celebrating the holiday a week early with a new video for her single "Baby Mama." The clip, released Monday (May 4), shows Brandy basically just being a boss woman in an amazing plaid suit."Whole world lookin' at me, single mama / This song ain't just for me, it's for every mama, yeah / Every day I breathe, it's for my little mama / I'm every women and a baby mama," she preaches in the infectious R&B hook.Chance the