The Twilight star turned 22 on Monday and her new Snow White and the Huntsman costars -- Charlize Theron, Chris Hemsworth and Sam Claflin -- wished her a very happy birthday in three new YouTube videos.
"Hey Kristen, happy bloody birthday!" Hemsworth, 28, said in his short but very sweet video. The Thor hunk plays the titular Huntsman in the fairy-tale inspired action-fantasy. "Have a great day. Lots of love."
Claflin, 25, who plays Prince William, really wished he could have been celebrated with his costar.
"Kristen! Mate! Happy birthday!" he exclaimed. "I'm sorry I can't be there with you, but I'm sure you'll be sorry as well. But happy birthday, really. I hope you have a fantastic day and I will see you soon."
Theron, 36, had the most to say to her "amazing" costar after she heard from "a little birdie" it was her birthday. Sadly, Stewart's real-life love Robert Pattinson hasn't yet posted any public birthday videos in her honor.
Stewart and Theron may not get along onscreen (Snow White vs. Evil Queen!), but the two bonded on set over cooking.
A source told Us Weekly, "They're both really reserved, but they've had a few dinners together. They're serious cooks and like to compare notes."