Ashlee Simpson Celebrates Birthday With Her Adorable Kids -- See the Pic!

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Simpson's husband, Evan Ross, couldn't help but share a sweet birthday message to his 'everything.'

Happy birthday, Ashlee Simpson!

The "Pieces of Me" singer turned 32 on Monday, alongside a little ice cream, a big slice of red velvet cake, and her adorable children.

RELATED: Ashlee Simpson Says She 'Definitely' Wants More Kids

Evan Ross took to Instagram to share a sweet pic of his wife's special day, as she blew out a huge candle with 7-year-old son Bronx and 1-year-old daughter Jagger on either side of her.

"Happy Birthday to the Most incredible Lady. I love you with all my heart baby. Im so lucky to have you!! Your My everything!! @ashleesimpsonross !!!!!!" he captioned the cute family pic.

RELATED: Evan Ross Cuddles Up to Wife Ashlee Simpson and Daughter Jagger

It looks like Ashlee celebrated with her sister, Jessica -- and Balenciaga -- on Tuesday.

"A day of the life in Balenciaga @ashleesimpsonross ?," the 36-year-old designer wrote alongside a silly shot of Ashlee zipped up in a giant bag.

RELATED: Ashlee Simpson Shares Rare Photo of Her Gorgeous Kids -- See How Grown Up Bronx Is!

The Simpson sisters are as close as ever, and their tight relationship seems to have rubbed off on their children.

Earlier this year, Jessica shared an adorable snap of her 2-year-old son, Ace, cradling Ashlee's daughter-- and even giving her a sweet kiss on the head.

See the sweet shot in the video below.