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"Happy 12th birthday my gorgeous lola.... I love u so much ❤️," Richards wrote next to a photo of her middle daughter on Instagram, bathed in the glow of birthday candlelight.
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"Strawberry and confetti double layer cake with buttercream icing and a magical faerie on top for a magical girl. #6," the singer captioned a snap of her daughter's celebratory confection.
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RAY LING SONG
"Our little Ray of light is one today," Ling wrote alongside one adorable snap of her younger child crawling. "We love you so much sweet baby girl, you have brightened all of our lives beyond measure."
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"Having you has taught me how to appreciate the here and now. I can't afford to wish for tomorrow because I know I'll miss today," dad Cash Warren captioned a sweet tribute post to the couple's older daughter on Instagram.
"You are kind, thoughtful and fair. You are smart, creative and driven," he added. "You're not afraid to lead but more importantly you're not afraid to listen. Keep it up my champ!"
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The Guncles' (a.k.a. Bill Horn and Scout Masterson's) older child Simone Lynn turns 7 on June 7, so it makes sense that her party would be all about the lucky number — and a unicorn cake, because why not?
"Birthday girl Simone could pick any restaurant for dinner...instead she picked a sandwich bar at home! That's my girl!! #SimonesSandwichBar #Simone7," Masterson captioned a party photo gallery on Instagram.
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Little River Rose is already hitting 3 years old, marking the big day on June 12.
"Happy Bday 2 our smart, witty & beautiful girl, River Rose! She wished 4 'pink forever' on her birthday," mom Kelly Clarkson tweeted alongside an adorable photo collage of her little girl decked out in princess attire.
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Little Andy Rose, the younger daughter of Jack Osbourne and wife Lisa, turns 2 on June 13 — and according to the dad of two, it's been a "wild ride" since she joined the family (including big sister Pearl Clementine, 5).
"She's equal parts beautiful, smart, independent and determined," Osbourne captioned an Instagram photo of his daughter on her big day. "She's my fearless dictator, and I love [every] second of it. I can't wait to see what she becomes in life."
"Andy I love you baby girl," he added. "I'm so glad [you're] in my life. Happy birthday Baba Yaga (that's her nickname, if you knew her you'd understand why)."
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Fashionista North is already turning 4 on June 15 — and her birthday festivities are sure to be some for the books.
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"I could not feel luckier being chosen to be your mommy," Thiessen continued. "You are the rainbow in my sky. You bring so much color and beauty to our lives sweet girl."
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"Thanks to everyone for coming out, and celebrating with our baby girl💜💛" Spears added.
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"HAPPY BIRTHDAY SUPER BROOKSIE!!! 💙🎂💙 You brought the magic into our lives 5 years ago today," Sims captioned a family snap of everyone decked out in their best superhero garb.
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TABITHA AND LORETTA BRODERICK
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"Happy birthday angel onyx," the "Ironic" singer captioned an Instagram snap of her daughter in a pink birthday hat.
"i am so happy i know you and love you and get to take care of you 💕💕💕💕💕," added Morissette, who's also mom to son Ever Imre, 6½.
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ALASKA VYALITSYNA CAHAN
"Happy birthday to the most precious little girl," Anne wrote on June 25 alongside a cute snap of Alaska kissing her cheek. "Words can't describe how grateful I am to be your mama 🎂"
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"I wanted to teach him what unconditional love is. Love, in my opinion, is not earned. We should all be loving and caring," the television star told PEOPLE of her son in 2016.
"So for Cree to have that, that has been my goal from day one."
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"Sailor Stevie, a year ago today I held you in my arms for the first time and our little family became complete. You are an absolute joy to watch grow," Garcia Swisher captioned an adorable pro Instagram photo of her pensive-looking baby girl.
"I often wonder what's in store for you and your sister and my heart fills up with pride, excitement, and gratitude," she added. "Thank you for choosing us, sweet Sassy. Happy 1st Birthday my little love!"
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Who knows what ideas Jessica Simpson and husband Eric Johnson had up their sleeves for Ace Knute's 4th birthday on June 30, considering big sis Maxwell Drew's recent mermaid party had the bar set high.
"May wish #4 come true my beautiful baby boy 💚#ACEKNUTE," Simpson captioned a smiley snap of Ace getting ready to dig into his sprinkle-topped cake.