All it takes is for the mercury to go up on the barometer and those celebs have got just the excuse they want to start flashing a little bit more flesh.
Sarah Harding took full advantage of the warmer temperatures to show off her rock hard abs after a work-out session.
The Girls Aloud star sported a grey cropped Run DMC tank-top and black leggings as she made her way home through the streets of London.
And she's taking this get-fit plan pretty seriously too, as she munched on an apple and some pineapple, swilling it down with some bottled water.
She's going to need to be on tip-top form for Girls Aloud's reunion tour, which is reported to be happening next year.
Nadine Coyle has confirmed plans for the band to reunite for the jaunt and possible new material.
She told The Mirror earlier this month: "It feels like the right time to regroup. I know everyone's been speculating about what we will do.
"It will be arena dates at the start of next year and we will have new music to go with it. One or two singles I would think. It depends on how well it goes with the tour announcement.
STARS WITHOUT SLAP