Spoiler alert peeps! Thanks to last night's ep of Glee in the US, we've got a sneak peek at Sue's big Madonna moment, which should air here in Oz in coming months. Watch as Sue ditches her signature trackies for Madonna's iconic sexy sheer top and flowing blond hair. What's even more intriguing than her makeover is how good she sounds—with a little help from Kurt and Mercedes, that is. So check it out after the jump and tell us what you think!