Heidi Montag's racy topless photoshoot to promote sexy new single

is baring all for one of her raciest shoots ever - and hitting back at the 'mom shamers' who have slammed her for stripping down.

The 37-year-old donned a pink G-string and posed topless in a jacuzzi for the photoshoot, which is to promote her new single, Wet Hot Summer.

In images shared exclusively with DailyMail.com, the mom-of-two posed in a soaking wet T-shirt that clung to her chest, before ditching the top completely.

Load More