Leona Lewis turns heads in a white cutaway gown at California awards

Leona Lewis turns heads in a white cutaway gown with daring thigh-high slit at the Environmental Media Awards

She has been staying in shape thanks to her healthy lifestyle.

And Leona Lewis looked astonishing on arrival at the 28th Annual Environmental Media Association Awards at The Montage, in Beverly Hills, on Tuesday.

The X Factor winner, 33, showcased her incredible legs in her sexy thigh-split which sexed up her demure one-shoulder floor-length dress.

Leona also teased a glimpse of her toned stomach thanks to the racy cut-out under her ample cleavage. She showed off her flirty side by blowing a kiss to cameras.

The songstress wore her bouncy golden corkscrew curls tumbling down her shoulders which accentuated her slender waist in her form-fitting gown.

Showing off some serious skin, the Bleeding Love hitmaker put her detailed feather tattoo on her shoulder and her red poppy inking on her forearm on display.

Environmental Media Association uses A-list stars to voice people across the globe should be living sustainable lifestyles to save the planet.

Leona was a vision as she went to the party on her own without the charming company of her dapper beau Dennis Jauch.

The singer gave onlookers a rare glimpse into their romance with their Vietnam getaway in January earlier this year.

Leona revealed that she had slimmed down the healthy way and previously documented her healthy lifestyle in an interview with .

She said: ‘I do four hour-long workouts per week – everything from SoulCycle to hiking with my dog.‘

Lifelong vegetarian Leona eats plenty of whole foods, including kale salads and tofu, and she limits her sweet tooth to stay in shape.

‘I try to drink plenty of water every day. I always have a bottle with me. It flushes out toxins and keeps my skin clear. I stick to three cappuccinos a week and a whisky on the rocks as an occasional vice.‘