Christina packs a punch as a comic book hero

Is it a bird? Is it a plane? No - it's a crime-fighting Christina Aguilera! Dressed in a figure-hugging red catsuit, mask and cape, the Dirrty singer turns superhero for an advert to promote her greatest hits album, Keeps Getting Better - A Decade Of Hits. The album will be released in the US tomorrow.

Lady in red: Dressed in red cape, mask and catsuit, Christina Aguilera promotes her new greatest hits album

The ad is filmed as a comic book-style strip, and the 27-year-old singer also slips into a black-andwhite leather suit for some frames, as she sings away while at the controls of a rocket ship.

What a hit: Aguilera in the comic book-style advert

She said: "I'm playing with this superhero element (because) fans have grown up with me since I was 17 and have continually supported my changes throughout the years."