Little Sloane is growing up so fast!

In honor of his wife's birthday, rapper Macklemore took to Instagram to share a sweet snapshot of his growing little girl and her mom.

"Couldn't dream of a better partner to share this world with," he wrote alongside the photo, while sending well wishes to his wife. "Happy birthday."

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The proud husband and his wife, Trivia Davis welcomed their baby girl in May and have been eagerly sharing photos of the growing little one.

The eight-month-old has already had a serious, and professional, impact on her superstar father. Little Sloane is also the inspiration behind Macklemore's song "Growing Up."

"She has filled my heart in ways that I never knew were possible," the new dad admitted. "She is the love of my life. This song is for her."