1. When Anne Hathaway met Mariah Carey: Tap to play or pause GIF Tap to play or pause GIF Associated Press / Via youtube.com In 2015, Anne Hathaway met one of her idols, Mariah Carey, at the premiere of The Intern and she freaked out when she saw Carey behind her (tbh all of us would). You can watch the full video here. And the best part is, Mariah Carey even tweeted at Anne afterwards (seriously, what a Queen): Mariah Carey @MariahCarey Loved the movie and your performance, Anne! xo http://t.co/jRLIK1vgR4 02:41 AM - 25 Sep 2015 Reply Retweet Favorite 2. When Ariana Grande met Jim Carrey: View this photo on Instagram instagram.com Back in 2014, Ariana met her childhood crush Jim Carrey and she started crying because of how happy she was. Look at how adorable she is! She then went on to tweet how happy she was after the encounter: Ariana Grande @ArianaGrande met my childhood crush Jim Carrey. could even speak. he was kind, warm and human. I'm so happy. 05:53 PM - 21 Apr 2014 Reply Retweet Favorite 3. When Camila Cabello met Ed Sheeran: Billboard / Via billboard.com Camila met one of her longtime musical influences at the VMAs once and admitted that she went to the bathroom to cry. During an interview with BuzzFeed, she told us that she had framed a tweet from Ed Sheeran in her bedroom."When I was in my former group, we each had to pick a cover to sing, and I picked Ed Sheeran, “Lego House”. So we did the cover of the song, and he tweeted us, “Incredible”. And then a fan framed me his tweet. I have it in my room." 4. When Sarah Paulson met Rihanna: The Tonight Show Starring Jimmy Fallon / NBC / Via youtube.com Sarah Paulson shared how she peed a little when she met Rihanna on the set of their new film, Ocean's 8. She went on to say that she "just wanted to be cool around her". Honestly, I get you, Sarah. 5. When Emma Watson met Céline Dion: Getty / Alberto E. Rodriguez Emma gushed about meeting her during an appearance on Jimmy Kimmel Live. She said: "Céline Dion arrives and I'm holding my publicist like this is almost too much for me." You can watch the full interview here . 6. When Anna Kendrick met Beyoncé: Anna Kendrick @AnnaKendrick47 Guys, it happened. I met Beyonce. And she is an angel. And I am not worthy. And I will never stop shaking. #PatheticFanGirlOfTheYear 04:31 AM - 27 Jan 2014 Reply Retweet Favorite After meeting Beyoncé at the Grammys in 2014, Kendrick took to Twitter to document the moment. She had expressed her admiration for Queen B on several occasions so it's no surprise that she freaked the heck out when she finally met her! 7. When Adam Scott met Mark Hamill: Jimmy Kimmel Live / ABC / Via youtube.com Adam revealed during an appearance on Jimmy Kimmel Live that he’s been a fan of Mark Hamill all his life — in fact, he even invited Mark to his second birthday party. Needless to say, Mark didn’t show up to that but when he surprised him by walking onto the set, Adam freaked out.You can see the full video here. 8. When Taylor Swift met Justin Timberlake: The Ellen DeGeneres Show / Warner Bros. Television Distribution During an appearance on The Ellen Show in 2008, Taylor was asked who her musical crush was. Her response? Justin Timberlake. And when Justin then proceeded to walk into the room, she was at a loss for words. 9. When Selena Gomez and Kerry Washington fangirled over each other on Twitter: kerry washington @kerrywashington Song of the day (meaning it played in my workout this morning & I CANT get it outta my head!) 😃 @selenagomez THE HEART WANTS WHAT IT WANTS! 03:53 PM - 06 Jan 2015 Reply Retweet Favorite In 2015, Kerry Washington tweeted out that she was listening to "The heart wants what it wants" by Selena Gomez and added that it was stuck in her head. Selena replied to her tweet with "I can't move": Selena Gomez @selenagomez @kerrywashington I can't move 🙏 #Gladiatorfolife 💜 06:26 PM - 06 Jan 2015 Reply Retweet Favorite She followed it with "#Gladiatorfolife", showing that she's equally a huge fan of hers. 10. When Tamera Mowry met Mariah Carey: InStyle @InStyle Fangirl dreams DO come true. @TameraMowryTwo @MariahCarey #InStyleGlobes #GoldenGlobes 09:00 PM - 08 Jan 2018 Reply Retweet Favorite During interviews on the Golden Globes red carpet last year, Tamera tried to keep her cool when Mariah Carey walked behind her. She then freaked out when Mariah called her gorgeous. Don’t blame her, tbh. And of course, Mariah being the sweetheart she is, tweeted this later: Mariah Carey @MariahCarey Lol!! Love her!! 😘 https://t.co/iB8nndFwnK 12:57 AM - 09 Jan 2018 Reply Retweet Favorite 11. When Emma Stone received a video message from Mel B: 2DayFMSydney / Via youtube.com Back in 2014, the hosts of Jules, Merrick & Sophie, surprised Emma with a video message from Mel B. Naturally, she freaked out (because hello? Spice Girls) and started tearing up from joy. The best bit was when Mel B made her sing one of the Spice Girls' songs!You can watch the whole clip here. 12. When Emma Stone video-chatted with Mel C: Capital London / Via youtube.com Not even a month later, Capital FM surprised Emma with another video chat from a Spice Girl — this time, Mel C. She was so excited when Mel offered to let her try on Baby Spice’s old outfits!You can watch the full video here. 13. When Rihanna met Beyonce: Tap to play or pause GIF Tap to play or pause GIF The Tyra Banks Show Back in 2005, Rihanna admitted to Tyra Banks that she couldn't even speak the first time she met Beyoncé. 14. When Selena Gomez met Shia LaBeouf: Selena Gomez / Via youtube.com When Selena met Shia back in 2011, you could tell that she was freaking out but excited at the same time. Gomez seemed visibly shy but managed to blurt out, "I'm so sorry to bother you. I admire you." So cute!You can watch the full video here. After she met her childhood crush, she went on to tweet "best day ever" along with a link to the video: Selena Gomez @selenagomez Best..... Day..... Ever. http://fb.me/NoEtvozB 01:16 AM - 29 Jun 2011 Reply Retweet Favorite 15. When Ariana Grande met Imogen Heap: View this photo on Instagram instagram.com After meeting one of her longtime idols, Imogen Heap in 2014, she uploaded this video and thanked Heap for teaching her how to use Mimu gloves and giving her a home-cooked vegan meal. She then went on to write how much she adores her. Ariana's song "goodnight n go" is a remake of Imogen's song "Goodnight and Go". When talking to Billboard, she told them that her brother Frankie Grande sent her a text with the song. She added, "I heard it and thought it was really great. I loved it. I’m so happy -- I’m smiling now." Awww! 16. When Nicki Minaj met Lauryn Hill: View this photo on Instagram instagram.com When Nicki met Lauryn Hill back in 2016, she went from superstar to superfan. She bowed down in front of her and said, "I'm in love with your spirit, your mind, everything about you." Hill gave her a sweet hug in response and it's honestly so lovely to watch this wholesome moment between the two Queens.