We might be seeing a lot more of Justin Bieber and One Direction's Liam Payne in the not too distant future (*screams*) - both of the teen heartthrobs have been hitting the gym in a bid to bulk up.

And in Justin's case he's so keen to show us the results of his hard work that he's taken to Twitter to post topless snaps of himself.

justin bieber

Justin Bieber shows us his six-pack

OK, so JB might have a little way to go before he can give JLS a run for their money in the beefcake stakes but everyone's got to start somewhere and well, who wouldn't want a stomach like that?

Meanwhile, Liam Payne has also hit the gym in a bid to avoid looking like Mr Puniverse on the beach.

liam payne

Liam Payne

A source told The Sun: “He’s been down [to the gym] a lot more lately and has started asking some of the lads for tips and pointers.

“He said he’ll be taking his new girlfriend away when he gets the chance and wants to be fit. He’s a naturally slim lad but if he keeps following the tips he’s been given, he’ll have that six pack in no time.”

Let's hope he takes Justin's lead and starts tweeting snaps of his progress, eh?

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  • Beach Boys

    Chris Hemsworth

  • Beach Boys

    Hugh Jackman

  • Beach Boys

    Matthew McConaughey

  • Beach Boys

    Jamie Redknapp

  • Beach Boys

    Marvin (JLS)

  • Beach Boys

    Daniel Craig

  • Beach Boys

    Tom Hardy

  • Beach Boys

    Gavin Rossdale

  • Beach Boys

    Gary Lineker

  • Beach Boys

    Oritse (JLS)

  • Beach Boys

    Jeff Brazier

  • Beach Boys

    Aston (JLS)

  • Beach Boys

    JB (JLS)

  • Beach Boys

    Mark Wahlberg

  • Beach Boys

    Eric Dane

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