Vin Diesel wishes Paul Walker's daughter happy 21st birthday: 'I have always been proud of you'

Paul Walker's daughter Meadow celebrated her 21st birthday on Monday.

Many of the late actor's former "Fast and the Furious" co-stars sent well-wishes to Meadow to help her celebrate her special day.

Vin Diesel, a longtime friend of Walker's, shared a sweet post for the birthday girl. "I could say that I am so proud of the person you are becoming... but the truth is I have always been proud of you," he wrote. "Happy Birthday Meadow!"

"I know it’s your 21st and you wanted to go big in Japan, but the family has a cake waiting for you when you get home, so hurry," he added.

"Love you kid," he wrote, signing the note, "Uncle Vin."

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Meadow seemed touched by his words, commenting, "Thank you so much. I can’t wait to see you soon. And my little angels. Love you."

Jordana Brewster, another co-star of Walker's, also sent her best wishes. "Happy Birthday @meadowwalker You are a soul sister and I love you with all my ❤️" she captioned a photo of the 21-year-old.

Meadow launched the Paul Walker Foundation in 2015 to carry on her father's legacy. She often shares posts remembering him on her Instagram account.

In August, she shared a touching photo of him, writing, "thinking of you xx" in the caption.