British pop star Robbie Williams is obsessed with word game Scrabble - and insists he's something of a pro at the board game. The Angels star regularly plays the word-building puzzle with his dad Pete in Los Angeles, and is confident he's the Williams family champion. He says, "He (Pete) won't like to admit it, but I'm the Scrabble ninja in this household. Don't even come with a challenge until you have mastered the two-letter words."