This year's The X Factor comes to a close this weekend with the series Live Final.After thousands applied the competition is now down to the final three contestants, who are all one step away from winning a life changing record contract.The final three will each perform two songs including a surprise duet with a guest performer in front of an audience of thousands at Wembley Arena, as well as trying to impress viewers at home who will be voting for their 2016 champion.After a nail-biting wait, the contestant with the lowest public vote will have to leave the competition in third position.The remaining two contestants will then compete in Sunday night's final showdown before the winner is crowned.Throughout the Sunday final an outstanding line-up of guest stars will perform.