Might not be the light.
Maybe the switch has broken.
Maybe a wire has come loose from the switch.
When you say all the other lights have "blown", what do you mean? Just that they don't work, or that all the bulbs really did blow?
But I agree with Breezer - I think you should get an electrician. If you can't think of the limited range of likely options for the cause of the fault yourself, and consider that you need expert knowledge so to do, then without wishing to cause offence, your level of knowledge is probably insufficient to DIY..