Jessica Simpson wishes her daughter Birdie Mae a happy first birthday

Jessica Simpson wishes her daughter Birdie Mae a happy FIRST birthday… after giving a rare look inside her posh mansion

Jessica Simpson had something to celebrate on Wednesday.

The 39-year-old blonde beauty’s third child Birdie Mae is having her very first birthday.

The night before the star posted to Instagram a photo of her darling child along with a fun note: ‘Everyone say nighty nite to the sun because tomorrow I’m turning 1 ⭐️ #BIRDIEMAE.’

And now for some happy news: Jessica Simpson had something to celebrate on Wednesday. The 39-year-old blonde beauty’s child Birdie Mae is having her very first birthday

The little girl was in her gold star pajamas with her blonde hair combed as she sat on a staircase.

Jessica has two other children: son Ace Knute, age six, and daughter Maxwell Drew, age seven. Her husband is former football player and Yale grad Eric Johnson, aged 40.

Earlier this month, the fashion designer gave a rare look inside her mansion in Hidden Hills, California.

She purchased Ozzy and Sharon Osbourne’s old home in 2013 for $11.5M. 

The cover girl was in all black as she stood in the foyer complete with a table that had several framed pictures on it and blossoms.

Luxe living: Earlier this months, the fashion designer gave a rare look inside her mansion in Hidden Hills, California. She was in all black as she stood in the foyer complete with a table that had several framed pictures

Luxe living: Earlier this months, the fashion designer gave a rare look inside her mansion in Hidden Hills, California. She was in all black as she stood in the foyer complete with a table that had several framed pictures

Same spot: And earlier this year her daughter Maxwell Drew, age seven, was seen in the same space with two bouquets of flowers behind her

Same spot: And earlier this year her daughter Maxwell Drew, age seven, was seen in the same space with two bouquets of flowers behind her

There was also a spiral staircase and a crystal chandelier. 

Simpson has been celebrating the success of her memoir, Open Book, which is on top the New York Times best seller chart, all year.

‘I wrote this book thinking if it could help one person get through their struggle it would be worth it. To find out that I have sold enough copies to make me the #1 New York Times best seller is humbling and surreal,’ she said.

Her home is far from small! On the balcony of her mansion which has a large back yard

Her home is far from small! On the balcony of her mansion which has a large back yard

Another rare look at her pad: In this image Jessica is in her spacious kitchen

Another rare look at her pad: In this image Jessica is in her spacious kitchen

‘I pray every day that I can use my platform for good. I promise to continue to be open and to lead with my mistakes. I promise to be honest and use the voice that God gave me.

‘Thank you guys for standing by me and supporting me. This is a dream come true. #OpenBook.’

In the memoir, Jessica speaks candidly about various aspects of her personal life, including her high-profile marriage to Nick Lachey between 2002 and 2006.

And the blonde beauty recently admitted she regrets not getting a pre-nuptial agreement when they tied the knot, as she was convinced they would be together forever.

Jessica said: ‘I wish I would have signed a pre-nup. That’s the funny thing: Nick wanted me to sign a pre-nup and I was so offended.

‘I’m like, ‘But we’re going to be together for the rest of our lives. We’re saying our vows to God and in front of all of our family and friends. This is never gonna end.′ And we didn’t sign a pre-nup.’ 

And she has a son too: In addition to Birdie and Maxwell, the pinup has son Ace Knute

And she has a son too: In addition to Birdie and Maxwell, the pinup has son Ace Knute

Simpson’s GiftGate has still been in the media.

Hoda Kotb told Nick and Vanessa Lachey that it was sweet of them to send Simpson a gift.

Vanessa famously became enraged during the Today show interview as she clarified they never sent a gift to the pinup and in fact don’t even have the blonde beauty’s address. Later Jessica said she never did receive a gift from the pair.

On the go mommy: The looker has been promoting her new tell-all memoir Open Book

On the go mommy: The looker has been promoting her new tell-all memoir Open Book

Her first love: In Open Book the star described being married and getting divorced from Nick Lachey

Her first love: In Open Book the star described being married and getting divorced from Nick Lachey