Jessica Simpson went "over-the-top" for her daughter's sixth birthday party.

The 37-year-old singer and designer hosted an extravagant Greatest Showman-themed bash Sunday to celebrate daughter Maxwell's sixth birthday. Maxwell officially turned six years old May 1.

Simpson shared a photo on Instagram of herself with Maxwell, 4-year-old son Ace and husband Eric Johnson. Maxwell dressed up in a purple leotard and pink wig as Zendaya's character, Anne Wheeler.

"Maxwell's Over-The-Top Big Top #TheGreatestShowman #MAXIDREW #6," Simpson captioned the picture.

Simpson also posted a snapshot of herself with several performers dressed as characters from The Greatest Showman. The movie stars Hugh Jackman as Barnum & Bailey Circus founder P.T. Barnum.

"Rewrite The Stars #TheGreatestShowman #ThisIsMe," Simpson wrote.

Maxwell often experiments with her look, including a "girly goth" look in November. Simpson said in an interview with People in 2016 that her daughter's sense of style has inspired her approach to her clothing line.

"She teaches me a lot about outfits, and she is better at putting outfits together than me," the star said. "She's a new inspiration."

"I feel like it's important as a woman to know that you can make someone else feel good in her own shoes, make somebody else feel good in her own clothing," she added. "As a mother, I know how much my daughter respects a great outfit."

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