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    22 Wildest TV Guest Stars Who People Still Can't Believe Actually Appeared On These Shows

    Stephen Hawking appearing on The Big Bang Theory was pretty much the coolest thing ever.

    Recently, we asked the BuzzFeed Community to tell us the wildest and coolest examples of guest stars. Here are some of the best!

    1. Taylor Swift on New Girl

    On New Girl, Shivrang says "I want to marry you!" and Taylor Swift stands up
    Ray Mickshaw/Fox / courtesy Everett Collection

    "It was so random and unexpected. Also the closest we got to a 'Speak Now' music video!"


    "I wasn’t expecting it at all and it was so funny how she was the one who declared her love for the groom at Cece’s wedding."


    2. Mary-Kate and Ashley Olsen on Sister, Sister

    On Sister, Sister, Tia and Tamera recognize the Olsen twins, and one of the twins responds "You got it, dude"
    The WB

    "Definitely when Mary-Kate and Ashley Olsen appeared on Sister, Sister on the episode 'Slime Party.' It was so cool to see two pairs of celebrity twins 'competing' against each other on the game show, and it was super funny when Ashley (or was it Mary-Kate?) came out with that cheeky bit of 'advice' that was certainly not 'Love your sister no matter what happens, 'cause nothing's better than family.' Sorry, Tia!"


    3. Snooki on Supernatural

    Sam asks "is that..." and Dean says "that explains a lot" as we see Snooki
    The CW

    "Snooki on Supernatural as a crossroads demon. When Sam asked if he can call her Snooki and she went, 'No. It’s Nicole now'...and how it made so much sense that she was a demon the whole time...lmao."


    4. Stormy Daniels on Saturday Night Live

    Ben Stiller as Michael Cohen calling Stormy and saying it's Michael Cohen with Alec Baldwin as Trump also on the line

    "When the real Stormy Daniels came on SNL [in the] cold open, I WAS SURPRISED."


    5. Lin-Manuel Miranda on Brooklyn Nine-Nine

    Lin-Manuel Miranda being arrested on the show
    Ron Batzdorff / NBC / Courtesy Everett Collection

    "He was one of the show's fans who helped get it picked up by NBC, and then they had him star as Amy’s brother. He was perfect for the role."


    "This is a great answer. He and Sean Astin were huge champions pushing for the renewal, and both of them appeared in Season 6!"


    6. Stephen Hawking on The Big Bang Theory

    Sheldon tells Stephen that it's an honor to meet him, and Stephen says "I know"

    "100% Stephen Hawking on The Big Bang Theory. I don’t care about the Star Wars guys, this guy developed the original Big Bang Theory. He is the show’s namesake and he was pretty much the biggest genius of his time."


    7. Mark Hamill on What We Do in the Shadows

    Mark as a vampire

    "It's such an outrageous show already, then Mark just comes in and does his whole thing as Jim the Vampire. They set it up for him to return, so I'm excited to see if that happens!"


    8. Billy Crystal and Robin Williams on Friends

    Billy Crystal and Robin Williams on the couch next to the Friends on Friends
    Paul Drinkwater / NBC / Courtesy Everett Collection

    "Definitely my favorite cameo of the show!"


    9. Britney Spears on Jane the Virgin

    Rogelio presenting next to Britney on the show
    Greg Gayne/The CW / courtesy Everett Collection

    "The sequence where Britney Spears and her crew march through the Marbella hotel in Jane the Virgin."


    10. Julia Roberts on Friends

    Matthew Perry and Julia Roberts on Friends
    Warner Bros. / Courtesy: Everett Collection

    "Matthew Perry had to write an essay about quantum physics [for her to guest star]!"


    11. Joe Biden on Parks and Recreation

    Joe Biden holding Leslie's hand on the show
    David Giesbrecht / NBC / courtesy Everett Collection

    "It was a running gag throughout the whole show that Leslie had a major crush on him, and it was so funny that they were able to get him and Jill on the show."


    12. Prince on New Girl

    Prince sitting between Nick and Jess
    Fox / courtesy Everett Collection

    "Prince on New Girl cannot be topped. End of story."


    "Could you imagine? You have your own successful TV show and Prince comes on and he's the boss!! *snap* As it should be."


    13. Paul McCartney on BoJack Horseman

    Paul McCartney bursts out of a cake yelling "Surprise!" then looks around in confusion, saying "Hello?"

    14. Paris Hilton on Supernatural

    Paris in front of Dean and Sam
    Jack Rowand / CW / courtesy everett collection

    "When Paris Hilton guest-starred on Supernatural as a shapeshifting god and knocked out Dean Winchester with her heels. It was funny to see Paris Hilton on a dark show like Supernatural and definitely meta since both Paris Hilton and Jared Padalecki were in House of Wax together."


    15. James Earl Jones on The Big Bang Theory

    James Earl Hones singing next to Sheldon
    Robert Voets / CBS / courtesy Everett Collection

    "James Earl Jones on The Big Bang Theory convinced me he is a national treasure."


    "Oh my gosh. I love this episode! He’s just a big kid!"


    16. New Edition on Family Matters

    New Edition in the Living Room with the Winslow family in the show
    Jerry Fitzgerald, ©ABC / courtesy Everett Collection

    "New Edition on Family Matters was also iconic! Jaleel White had them dance moves on point!"


    17. Michelle Obama on Parks and Recreation

    Michelle tells Leslie "You know how I feel about Chicago" and Leslie shouts back "You are from Chicago, so you like it"

    "Gets me every time!"


    18. Dwayne Johnson on Wizards of Waverly Place

    Dwayne says he's Dwayne Johnson, and Selena, pretending she knows who that is, says, "Ohhh, you're Dwayne Johnson"
    Disney Channel

    "Absolutely priceless."


    19. Ray Charles on The Nanny

    Yetta hugging Ray in the show
    CBS/Courtesy Everett Collection

    "Shock would be an understatement for what I felt when I saw him the first time on the show."


    20. Clay Aiken and Chaka Khan on Phineas and Ferb

    Clay singing with Phineas and Ferb, then Chaka Khan bursting in to sing too
    Disney Channel

    "Their song in 'Summer Belongs to You' SLAPS!!!"


    21. Colin Powell, Hillary Clinton, and Madeleine Albright on Madam Secretary

    Elizabeth shaking Madeline's hand on the show as Hillary and Colin look on

    "If you love politics, it's very nerdy cool."


    22. And finally, Bell Biv DeVoe on The Fresh Prince of Bel-Air

    Will approaches Bell Biv DeVoe asking what's up but they say they're trying to do a video

    "Will trying to get in the music video was hilarious!"


    Submissions have been edited for length/clarity.

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