can you believe she was heavier than a tank before?

Her weight loss rollercoaster had been well documented over the years.

But on Friday, Jessica Simpson joked about her weight gains and losses while looking thinner than ever as she donned a form-fitting floral mini dress for her Today Show appearance in New York City.

The 34-year-old actress and businesswoman - who weighe 210 pounds at her heaviest - was a good sport laughing off her body transformation and quipped: 'I've been all kinds of sizes!'

Flirty in floral: Jessica Simpson donned a form-fitting floral mini dress for her Today Show appearance in New York City on Friday

Jessica Simpson jokes about her weight during Today Show

The mother-of-two chose a body hugging black and yellow patterned design when she sat down to chat with Today co-host Samantha Guthrie and Teen Vogue editor-in-chief Amy Astley.

Jessica - who is happily married to Eric Johnson - dressed conservative covering her body in the long sleeve dress but showed off ample cleavage with the scoop neck line.

She styled her blonde tresses in a messy updo and showcased a flawless complexion.

Body hugging: The 34-year-old star dressed conservative covering her body in the long sleeve dress but showed off ample cleavage with the scoop neck line