Joe vows to keep his head in Climb to top of the charts

X FACTOR winner Joe McElderry toasted his success as his victory – and almost inevitable number one slot in the charts – began to sink in.

More than 19 million people saw the new star triumph on the talent show on Sunday night.

McElderry, 18, said it was the “best experience” of his life, and admitted: “I am still pinching myself.”