Blue Ivy Sings “Surfboard” at Beyoncé’s Grammy Rehearsal by SG Posted on March 9, 2014 Video The adorable 2-year-old was mic’ed up for her mother’s Grammy rehearsal and sings along while Beyoncé performs “Drunk in Love.” The “Hi Mommy” is cute as all hell. Watch below: Rate this:Share:EmailTweetWhatsAppLike this:Like Loading... Related