Captain America star Chris Evans on Saturday celebrated his 40th birthday.
Millions of his fans took to social media to extend birthday wishes to their favorite actor.
Evan's co-stars from "Avengers" also wished him on his birthday and posted throwback photos with the actor.
Chris Hemsworth, who played Thor in Avengers, shared a picture with Chris Pratt and wrote a funny caption that read, "Happy 40th birthday Chris Evans. You'ill always be number 1 in my book."
His caption was a reference to the first names of the three actors.
Jeremy Renner shared a throwback photo with Evans and wrote, "Happy 40th to you my brother!!! I mess you."