'Freddie For A Day' is an annual event held on Freddie Mercury's birthday, tomorrow, to celebrate the former Queen frontman and raise money for the AIDS charity set up in his name. Angry Birds creator Rovio gets in on the act this year by releasing the above specially created animation. We've got to hand it to Rovio: the late, great Mr. Mercury makes a dynamite Angry Bird. Freddie For A Day festivities continue throughout the week - although, Londoners, you've just missed out on glamming up The Savoy for a day. Luckily, there are still plenty of other ways to celebrate the rock legend and donate to a very worthy cause.