Got that post-carbs lunch slump? Then how's this for a little treat. Britney's new single Womanizer has just hit the net and it's causing a real divide in the Grazia offices. Some of us love her ‘comeback' song and are busily humming it at our desks, whilst others are still unconvinced - by the song and the fact Britney's back. Listen yourself and tell us what you think below.