Speaking with ET at the premiere of their new comedy Get Hard, the two co-stars explained what makes them such a great comedy team.
"I don't know if anyone has more energy," Ferrell said, revealing what traits he admires in Hart. "It's not fake. It's 100% organic. He is like the most affable, friendly guy on planet earth. It's fun to see."
As for Ferrell, Hart says it's his consummate professionalism and desire to collaborate that makes him a powerhouse comedy partner.
"[He] approached every work day like it's his first day. There is no lackadaisical behavior, no jaded essence that I have every picked up," Hart said. "That's why I really, really respect about him. He's not selfish with the funny. We want to make each other funny and we're both givers. In return it gave us a great comedy."