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Proud mom Jamie Lynn Spears shared a shot of her 7-year-old daughter Maddie on Instagram Monday.

“After a productive writing beach trip- it’s time for the family beach trip…. I’m so blessed,” she captioned the image of her daughter donning a bikini on the beach.

Britney Spears‘ beautiful niece just celebrated her 7th birthday on June 19. She welcomed her seventh year with a mermaid-themed backyard bash.

The birthday girl enjoyed a poolside party, and celebrated with a pink and green cake decorated with seashells and a tiny little mermaid in a pink bikini.

Last week, the Shotgun Wedding singer, 24, shared some shots from the birthday party via Instagram.

Successful mermaid party!!! Thanks to everyone for coming!!! #seven #maddieb

A photo posted by Jamie Lynn Spears (@jamielynnspears) on Jun 20, 2015 at 12:50pm PDT

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