Today is National Pizza Day where we celebrate one of the best foods in existence. 

Pizza ranks as a favorite meal for millions of people and among them are some celebrities. Here are 25 stars chowing down on some 'za.

1. Gwen Stefani: The Voice judge might hollaback for some pizza:

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2. Usher: He probably always says "Yeah!" to eating pizza:

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3. Miley Cyrus: It seems like Miley likes her pizza with a side of spaghetti:

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4. Jay Z and Beyonce: No word on if they drink lemonade with their pizza:

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5. Ryan Gosling: He even looks good eating pizza.

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6. The Jonas Brothers: The guys have been enjoying pizza for years:

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7. Kim and Kourtney Kardashian: They might love their salads but they also are fans of pizza:

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8. Kylie and Kendall Jenner: Kim and Kourtney aren't the only members of the family who appreciate a slice now and then:

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9. Madonna: The Queen of Pop might be more of a Pizza Girl than a Material Girl:

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10. Simon Cowell: We bet Simon is a pretty harsh judge of his pizzas:

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11. Niall Horan: He probably eats his pizza with slow hands: 

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12. Tina Fey: On 30 Rock, she found a creative and quick way to down some 'za:

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13. Justin Bieber and Selena Gomez: Not even good pizza could keep them together:

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14. Selena Gomez: She doesn't need the Biebs around to enjoy a slice:

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15. Brad Pitt: He probably doesn't always eat his pizza while wearing a tux:

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16. Jennifer Lawrence: J-Law is so down to earth she'll eat pizza at the Oscars:

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17. Lindsay Lohan: The freckled actress likes her pizza with pepperoni freckling it: 

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18. Kirsten Dunst: Hopefully pizza can cheer her up:

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19. Sofia Vergara: She'll always make sure pizza is part of her modern family:

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20. Katy Perry: She probably likes her pizza hot and cold:

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21. Avril Lavigne: Maybe "I'm With You" was about pizza:

22. Meryl Streep: She could win an Academy Award for how she eats her pizza:

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23. Kerry Washington: No scandal here - she loves her some 'za:

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24. Harry Styles: Eating pizza with coconut water is just a sign of the times: 

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25. Taylor Swift: There's no bad blood between Tay Tay and pizza:

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Happy National Pizza Day!