Justin Bieber shows he's not to be outdone at Victoria's Secret show

Not to be upstaged by the rock hard abs of the Victoria's Secret models, Justin Bieber has been showing the world his washboard stomach in a topless pic.

Performing tonight at the lingerie catwalk show in New York, the singer will be serenading the likes of Miranda Kerr and Alessandra Ambrosio as they take to the runway.

Bieber will be singing alongside Rihanna at the star studded bash, which will not be aired on TV until December.

Showing off his white Calvin Klein boxers, he commented, "Me and @nickdemoura dance rehearsal get ready #watchout"

Bieber has been taking on the models in an ab-off as they have also been tweeting pictures of themselves in the run-up to the show.

Not bad Bieber, we see why Selena Gomez sticks around you little pop stud.

What do you reckon to Justin's topless pic?

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