Dax Shepard Wants to Replace Bradley Cooper in 'A Star Is Born' - Watch!

Dax Shepard is sporting a new look!

The 44-year-old Armchair Expert host made an appearance on The Ellen DeGeneres Show on Thursday (January 3).

PHOTOS: Check out the latest pics of Dax Shepard

During his appearance, Dax sported a beard inspired by Bradley Cooper’s character in A Star is Born. He spoke about his birthday and explains the many reasons why January 2nd is the worst day to celebrate as both a child and an adult. Then, he gets a birthday surprise from Ellen!

Later in the show, “Dr. Dax” returned to give relationship advice and answer a question from his wife, Kristen Bell. Plus, he gets a scare!

During the episode, Ellen also shared her plans to save the world by reducing the use of plastic, revealing boxed versions of her ELLEN water and her fan-favorite ELLEN underwear.

Watch below!