which celebrities have been unmasked on the masked singer uk?
['Butterfly - Former Eastenders actress Pasty Palmer.', 'Pharaoh - Former Home Secretary Alan Johnson.', 'Chameleon - The Darkness singer Justin Hawkins.', 'Tree - Footballer Teddy Sherringham.', 'Daisy - American singer Kelis.', 'Duck - Skin from Skunk Anasie.', 'Unicorn - Scissor Sisters singer Jake Shears.']