British pop star Jesy Nelson shocked fans by shedding her squeaky-clean image and indulging in crotch-grabbing dance moves while performing with her Little Mix bandmates on Saturday (12Oct13).

The girl band hit the stage to perform in front of a family-friendly audience at the 2013 Girlguiding Big Gig at London's Wembley Arena, but Nelson opted to show off her raunchy side by repeatedly grabbing her privates.

She also donned an eye-popping outfit for the routine, wearing just a thigh-skimming oversized T-shirt which barely covered her legs. In contrast, her bandmates Leigh-Anne Pinnock, Jade Thirlwall and Perrie Edwards were wearing trousers.