Kristen Wiig turns 40 on Thursday, Aug. 22, and to celebrate the "Saturday Night Live" alum's big birthday, we've collected her funniest moments. From yelling alongside Will Ferrell at the Golden Globes to her best Suze Orman impression, here are 20 of Wiig's most memorable bits.

1. "Knocked Up" (2007)

2. "Forgetting Sarah Marshall" (2008)

3. "Ghost Town" (2008)

4. "The Lawrence Welk Show" ("SNL," 2008)

5. Suze Orman ("SNL," 2008)

6. Target Lady ("SNL," 2009)

7. Reading from Suzanne Somers' autobiography (2009)

8. 1920s party ("SNL," 2010)

9. "The Looney Tunes Show" (2011)

10. "7 Minutes in Heaven" (2011)

11. "Bridesmaids" (2011)

12. Offering a solution to global warming (Funny or Die, 2011)

13. Kardashian divorce special ("SNL," 2011)

14. Jay Z and Beyonce's baby ("SNL," 2012)

15. Playing a Martin Scorsese-themed drinking game at the SAG Awards (2012)

16. Wresting with Annie Mumolo at the Comedy Awards (2012)

17. Disney Housewives ("SNL," 2012)

18. Presenting the Golden Globe with Will Ferrell (2013)

19. Socialite CD ("SNL," 2013)

20. Portraying Michael Jordan on "Late Night with Jimmy Fallon" (2013)

Related on HuffPost:

Loading Slideshow...
  • The Lawrence Welk Show

    With my by myself.

  • Garth & Kat

    Always prepared.

  • Extreme Activities Competition

    Kristen vs. Andy

  • Michelle Bachmann

    Bachmann's second attempt at a response to President Obama's State of the Union address.

  • The Today Show

    Kathie Lee Gifford makes this unpleasant for Hoda Kotb every morning.

  • Secret Word

    Mindy has a tough time with this game.

  • Björk

    Oh snarf.

  • Shana

    The sexy new girl from work.

  • Suze Orman

    Suze. Orman. Has. Money. Saving. Tips. For. You.

  • Almost Pizza

    It's not delivery, and it's not exactly pizza either.

  • Penelope

    She already did that, so...

  • Aunt Linda

    Oh, brother.

  • Gilly

    Sorry.

  • Nancy Pelosi

    Pelosi is still pretty bitter.

  • The Target Lady

    Yowza!