Fans of pop icon Katy Perry are in for a treat tonight as she takes centre stage for a special one-off concert. Katy Perry: Night of a Lifetime airs tonight (December 21) on ITV1 and ITVX at 6.30pm.

Born Katheryn Elizabeth Hudson, pop star Katy Perry makes a fortune from her singing career, songwriting, television appearances, and businesses. Perry is now one of the best-selling music artists ...