As Hello Kitty celebrates her 40th birthday, here are a few famous faces who just can’t get enough of the cute feline.

1. Lady Gaga

Celebrities who can't get enough of Hello Kitty
(Shizuo Kambayashi/AP)

2. Jamie Lee Curtis and her daughter Annie Guest

Celebrities who can't get enough of Hello Kitty
(Tammie Arroyo/AFF/EMPICS Entertainment)

3. Katy Perry

4. Paris Hilton

Celebrities who can't get enough of Hello Kitty
(Starmax/EMPICS Entertainment)

5. Avril Lavigne

6. Bethenny Frankel

Celebrities who can't get enough of Hello Kitty
(Landov)

7. Jessica Alba

8. Ashley Judd

Celebrities who can't get enough of Hello Kitty
(Starmax/EMPICS Entertainment)

9. Megan Hilty

(Dennis Van Tine/Starmax/EMPICS Entertainment)
(Dennis Van Tine/Starmax/EMPICS Entertainment)

10. Mariah Carey

11. Pia Toscano

Celebrities who can't get enough of Hello Kitty
(Vince Flores/AFF/EMPICS Entertainment)

12. Helena Christensen

13. Bella Thorne

Celebrities who can't get enough of Hello Kitty
(Shizuo Kambayashi/AP)

14. And of course, Darth Vader