Dance Moms Stars Maddie and Mackenzie Ziegler Have Four Siblings

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The world first met Maddie and Kenzie Ziegler in 2011 as the 8- and 6-year-old sisters at the heart of the hit reality TV show "Dance Moms." Since then, they've become global superstars, with Maddie starring in films like "The Book of Henry" and "West Side Story," and Kenzie releasing her own music and appearing on "Dancing with the Stars."

Maddie Ziegler Shows Some Sisterly Love in Celebration of Sister Mackenzie Ziegler's 18th

In honor of Kenzie's 18th birthday, Maddie took to Instagram to share a sweet photo of the two of them with a heartfelt caption. "Happy 18th birthday to my best friend, my sister, my everything," Maddie wrote. "I can't believe you're already an adult! I'm so proud of the amazing woman you've become. You're kind, compassionate, and always see the best in everyone. You're also the best sister anyone could ask for. I love you more than words can say."

Kenzie responded to Maddie's post with an equally sweet comment, writing, "I love you too, Mads! Thank you for always being there for me. You're the best sister a girl could ask for."

The Ziegler sisters have always had a close relationship, and they've only grown closer over the years. They're both incredibly talented and successful, and they're always there to support each other. They're truly an inspiration, and we can't wait to see what they accomplish in the years to come.