Jessica Simpson sings with her daughter Maxwell Drew to celebrate her eighth birthday

Jessica Simpson duets with ‘my best friend’ daughter Max on her eighth birthday as she posts gushing tribute

Both Jessica Simpson and her sister Ashlee have had pop hits. 

And it appears as though stellar vocals runs in the family, with Jessica Simpson showcasing her daughter Maxwell Drew’s musical abilities on Saturday. 

The 39-year-old took to social media to share a sweet singing video with her eldest girl to celebrate her eighth birthday. 

Just like mom! Jessica Simpson shared a sweet video singing with her daughter on Saturday to celebrate her eighth birthday

Jessica and Maxwell were cuddled up in bed where together they had tender mother-daughter chat before belting out This Little Light of Mine and Amen. 

‘8!’ she began the lengthy post. 

‘Today my first born, Maxwell turned 8. She has more light in her soul than anyone I’ve ever known and shines far brighter than any star in the galaxies. She is a gift to everyone who knows her and deeply connects to those she has never met and prays for every night.’ 

Star child: 'Today my first born, Maxwell turned 8. She has more light in her soul than anyone I’ve ever known and shines far brighter than any star in the galaxies'

Star child: ‘Today my first born, Maxwell turned 8. She has more light in her soul than anyone I’ve ever known and shines far brighter than any star in the galaxies’

Water baby! The Open Book author also shared a cute shot with her youngest daughter, Birdie Mae, one, in the pool on Saturday.

Water baby! The Open Book author also shared a cute shot with her youngest daughter, Birdie Mae, one, in the pool on Saturday.

Jessica continued to share that her daughter helps her be ‘unapologetically’ herself. 

‘Maxwell inspires me to be unapologetically myself in every way. She has taught me that I don’t have to be perfect by continually reminding me I’m perfect for her.’ 

She continued: ‘She is full of love, true compassion, mindful determination, intelligence, purposeful leadership, steadfast strength, deep wisdom, true beauty inside and out, hilarious sarcasm, feisty diplomatic reasoning, limitless talent, nonjudgmental awareness, relentless loyalty, and hope that manifests miracles.’ 

Family: Jessica is the mom to Maxwell, eight, Ace, six, and Birdie, one, with husband Eric Johnson, 40

Family: Jessica is the mom to Maxwell, eight, Ace, six, and Birdie, one, with husband Eric Johnson, 40

‘Maxwell Drew Johnson is my best friend and I pray to God that I can be half the person she is when I grow up. I couldn’t love anyone more than I love this 8yr old. Happy Birthday baby girl. Mommy loves you in every way!!! PS Max blessed this video with her consent.’ 

Jessica shares Maxwell with former NFL star, Eric Johnson, 40. They are also parents to Ace Knute, six, and Birdie Mae, one. 

The Open Book author also shared a cute shot with her little one in the pool on Saturday. 

‘I think I now have that kid Saturday happy kind of feeling all over again! No school for 2 whole days!!! #BIRDIEMAE.’

Mom-of-three: Jessica regularly shares adorable photos of her kids online

Mom-of-three: Jessica regularly shares adorable photos of her kids online 

Jessica’s post comes after her sister Ashlee announced she was pregnant with her third child earlier in the week. 

The singer took to the comments to share her excitement of becoming an Auntie to another baby. 

‘I couldn’t be happier for my favorite person on the planet!!!’ she began. 

‘This family of 5 over here are beyond elated for YOU, Evan, BX, and Jagger to expand the beautiful gift of family. Auntie of 3!!! This is hands down the most exciting news I could possibly imagine!!!’

Ashlee shares daughter Jagger with husband Evan Ross and Bronx with ex Pete Wetnz.  

New baby! Jessica's post comes after her sister Ashlee announced she was pregnant with her third child earlier in the week

New baby! Jessica’s post comes after her sister Ashlee announced she was pregnant with her third child earlier in the week