Ne-Yo took a playful shot at the size of Rihanna’s forehead according to the UK Mirror.
Ne-Yo was a guest of Kimberly Walsh on her Viva TV Show ‘Suck My Pop’ when he said. “Everyone knows that Rihanna has a great big forehead! There’s nothing wrong with it, it’s just… Rihanna’s forehead is two of yours! I can say that because I’m big brother.
Big Brother, you look like you’re at the head of the class your damn self.
Source Thisis50