No Strings Attached premiere

1. Ashton Kutcher and Natalie Portman

The stars arrive at the premiere looking gorgeous

2. Ashton Kutcher

It's easy to see why Ashton was a fashion model before becoming an actor....

3. Natalie Portman

Portman looked perfect, as usual

4. Ashton Kutcher and Demi Moore

The couple looked as loved up as ever

5. Greta Gerwing

Cast member Greta Gerwig arrives at the premiere "No Strings Attached" in Los Angeles, on Tuesday, Jan. 11, 2011.

6. Rumer Willis

Demi's daughter was in also in attendance

7. Chris "Ludacris" Bridges and Eudoxie

Chris "Ludacris" Bridges and Eudoxie arrive at the premiere

8. Tia Carrere

The actress poses on the red carpet

9. Natalie Portman

Natalie Portman's gorgeous engagement ring

10. Ben Lawson

The No Strings Attached actor arrives at the premiere

11. Demi Moore

Demi eyes up the poster....

12. Justin Price

The Vampire Diaries actor arrives at the premiere

13. Carey Elwes

The British actor attends the premiere

14. Mindy Kaling

Cast member Mindy Kaling

15. Lake Bell

Cast member Lake Bell poses for the cameras

16. Mindy Kaling, Greta Gerwig and Lake Bell

Mindy Kaling, Greta Gerwig and Lake Bell

17. Demi Moore

18. No Strings Attached cast

From left, Ashton Kutcher, director Ivan Reitman, Natalie Portman, and Kevin Kline pose together

19. Kevin Klein

20. Ashton Kutcher and Demi Moore

21. Elizabeth Meriwether

Cast member Elizabeth Meriwether arrives at the premiere

22. Ralph Macchio and guest

The original Karate Kid star still looks so fresh faced! Hard to believe he's 49!

23. Jason Reitman

"Juno" director Jason Reitman arrives at the premiere

24. Kat Dennings

Actress Kat Dennings looked stunning