The TV audience for the final of U.K. music talent show "The X Factor" peaked at 19.1 million, as viewers witnessed teenager Joe McElderry win the sixth series last night (Dec. 13).

The show averaged 15.5 million viewers between 7.30pm and 9.30pm, according to unofficial overnight figures. This represents a 53% share of the audience.

ITV said the final peaked at 19.1 million viewers in the five minutes after 9.15pm, when the winner was revealed. Its 15-minute peak was 17.1 million between 8.30pm and 8.45pm.

The ratings are the highest average and peak audience for any of the show's six series to date.

McElderry is expected to secure the Christmas No. 1 with his debut single, a cover of Miley Cyrus's "The Climb" (Syco/Sony Music Entertainment).