Justin Bieber won the international breakthrough act at last week's Brit awardsCanadian pop star Justin Bieber has been sized up for a waxwork at Madame Tussauds in London.The new figure, which is costing £150,000 to make, will be unveiled next month.The waxwork will have taken four months to complete by the time it's launched.The 16-year-old was in the UK for the premiere of his documentary