Hollywood started a Paul Walker tribute through social media today. His "Fast And The Furious" co-stars, in particular, posted photos of the actor on Twitter, Instagram, and Facebook, along with their best memory of him.

"A year ago today... a year of mourning... and his absence still leaves me speechless. We miss you Pablo..." one of his closest friends and co-stars, Vin Diesel said on Facebook.

Tyrese also posted a photo of himself and the late actor, including a call for people around the world to pray for the Walker family.

"A celebration of Paul William Walker will be echoed around the world.... In this life one would hope to be this 'effective..." he also shared.

"I am so lucky to have had him as a big brother," younger brother Cody told the New York Daily News through an email.

Paul Walker's official Twitter page also asked fans to remember the fallen actor through the hashtag #TeamPW.

The "Brick Mansions" actor died at 40 years old in a tragic car accident on November 30 in Los Angeles.

Browse through the gallery to see the Paul Walker tribute from his friends and fans.