The search for the nation's next singing superstar goes on as the competition enters the Battle stage. Coaches will.i.am, Jennifer Hudson, Olly Murs and Sir Tom Jones have some tough decisions to make as their acts go head to head and fight for a place on their coach's team. Those who impress their coach the most will remain in the contest - will those who do not impress get stolen by one of the other coaches, or will they be heading home? And who will go on to win the incredible prize of a record deal? Emma Willis presents.