Zayn Malik celebrated his birthday this weekend with a video he received from Ryan Reynolds. Malik, an outspoken "Deadpool" fan, shared the video to his Instagram, which features Reynolds suited up as the popular superhero. Reynolds says, "Zayn, it's Wade. Don't hang up. I just wanted to wish you a very happy birthday, again. I also wanted to apologize for jumping out of the cake like that. I didn't realize it was the middle of the night."