Tyra Banks shows off her svelte physique in a figure-hugging dress

PUBLISHED: 01:28 EST, 30 July 2012 | UPDATED: 05:53 EST, 30 July 2012

She famously lost an incredible 30 pounds in 2009 after deciding that carrying around extra weight was having a detrimental effect on her health.

And now Tyra Banks appears to be happier than ever with her slimline figure, as she showed on the red carpet at a party for the CW Summer Tour in Beverly Hills last night.

The 38-year-old host of America's Next Top Model drew attention to her svelte body as she opted for a figure-hugging black dress on the red carpet.

Tyra teamed the dress with a pair of black and gold peeptoe heels as she posed up for photographers at the star-studded event.

They say black is the most slimming colour! Tyra Banks showed off her supermodel figure in an asymmetric black dress at a party during the CW summer tour last night

From curvy to super skinny: Tara was proud of her curves but exhaustion prompted her to kickstart a health regime three years ago

When she first lost the weight, the star revealed she'd ditched fattening carbs on her hit CW hit The Tyra Banks Show.

Silhouette: Tyra accessorised the dress with an animal-print clutch bag and black and gold heels

She talked about how she shed weight without losing her '34DD boobies and her round booty,' but those curves have been whittled away since then.

Banks said she took her weight off gradually with 'no radical diets, no shakes, no starvation.'

She told fans that she now lived by the principal of eschewing 'love em and leave em carbs' and filling up on 'fiberlicious foods.'

'This is not a diet. I do not believe in diets. I have been on diets in the past. They are a bunch of bologna. This is a lifestyle change. It's not about being skinny. It's about being in the best shape you can be,' she said in a statement.

The 5'10' model had proudly flaunted her curves when she weighed 161 pounds, 30 pounds more than she did for her famous 1997 Sports Illustrated Swimsuit Edition cover.

But she gradually suffered with exhaustion so decided to take action.

'It had become harder to carry the extra weight around,' she admitted.

Perhaps a busy love life is keeping her trim.

Last month it was reported that Tyra is dating the 24-year-old British boxer-turned-model Robert Evans after she fired her judging panel and hired him in a show re-jig for the new season of the CW show.

She then tweeted a picture of them together in the Jamaican sea, though he wasn't by her side tonight.