Yesterday, September 12th, would've marked Paul Walker's 44th birthday. 

The legendary actor, who passed away on November 30th, 2013 after a single-car accident in Valencia, California, was remembered on his birthday by family and friends, including his daughter Meadow and Vin Diesel, both of whom took to instagram to share heartfelt messages.

Walker's daughter, Meadow, shared a throwback photo of herself dancing with her Dad, and challenged her 1.4 million instagram followers to share a video or photo of a random act of kindness.

The caption read,

"In honor of my dad's birthday today, we're challenging you to DO GOOD! Share a video or photo of your random act of kindness and nominate 4 people to join the challenge! Be sure to tag the foundation as well as hashtag #PWFdogoodchallenge, so we can check out all of your posts!"

Paul Walker's "The Fast and the Furious" co-star, Vin Diesel, also shared a heartfelt message on IG in honor of the late actor's birthday. He posted a photo of his daughter with "Uncle Pablo" and a caption that read,

"Happy birthday Pablo...

You have and are still changing the world. Your love lives through all whom have had the great fortune to know you. Meadow graduated this summer... made us all so proud. She is even building a foundation in your name to help the world. Would you believe Cody is in Houston continuing the work you were so passionate about... Remeber when we were in Haiti and you asked me what the name should be... and now @reachoutww is realizing the dream. All the angels miss you... I miss you."

Check out the posts below.