Celebrities Who Have Guest Starred on ‘The Simpsons’ (PHOTOS)

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Lady Gaga is coming to Springfield.

The “Born This Way” singer, 26, is set to appear in The Simpsons season finale — airing May 20 — and already her fans are going goo-goo after Gaga teased us with the news that her trademark outfits, in cartoon, will be even crazier than normal!

Gaga joins a long list of celebs, including Simon Cowell, Anne Hathaway and Mel Gibson, who have guest starred on The Simpsons during Bart and Homer’s 23 series.

Who else has featured since The Simpson’s December 17, 1989 debut? Click through the gallery to see the stars transformed into cartoons.

In a behind-the-scenes clip, Gaga opened up about her role on the hit show, saying:

I’ve always been a huge fan of The Simpsons. I was really excited and surprised and have been itching to do some TV again. It was such an incredible script. It’s so funny.

Which celebrity would you like to see on The Simpsons? Tell us in the comments.