Like Justin Timberlake, Mila Kunis received her Marine Corps Ball invitation via YouTube. Her date was Sgt Scott Moore and he took the actress to the celebrations in Greenville, North Carolina. After the party, he told the Press that Mila 'was very nice and very respectful….She gets credit and a lot of respect for coming here, not being part of this world and following through on her word.'
In April 2015, a fedora-wearing Justin Bieber crashed the Chatsworth High School prom as he was recording nearby. As he had never been to a prom before, after gaining huge success at the tender age of 14, he lapped up the atmosphere which included a lot of screaming girls!
15. Elizabeth Taylor (1949) - had the most romantic date

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You might have thought that celebrities attending proms with fans was something new. That's not the case as Hollywood mega star, Elizabeth Taylor, spent the evening with one of her fans. The actress escorted UCLA’s Bob Precht to his prom as he scooped the prize for winning The Most Romantic He-Man on the Campus.'
16. Selena Gomez (2009) - grabs Demi Lovato
Image source EOnline.com
In June 2009, Selena left her own dinner party and crashed the Etobicoke Collegiate Institute prom which was held on the same premises. She later returned to her own event, grabbed Demi Lovato and other friends and went back to the prom, staying until being asked to leave when it finished at 11pm.
17. Miley Cyrus (2014) - she had previously declined her date
Image source AZCentral
After Miley declined high school student Matt Peterson’s prom proposal, she invited him to her Phoenix, Arizona, show and asked him to bring a corsage. Both parties kept their promise and on 27th February 2014 Matt showed up, shirtless, with Miley's corsage. She then sang 'Adore You' to him!
18. John Mayer (2004) - performed at prom

Image source YouTube
It took two years of convincing, but in 2004 John Mayer finally showed up to sing at Pennsbury High’s year-end dance. He wowed the crowd by performing three songs and told the students to 'go be amazing people.' You can view a blurry recording of this prom appearance on YouTube.
19. Selena Gomez, Again! (2018) - danced with sick teenagers

Image source YouTube
Selena Gomez attended the Children’s Hospital of Orange County’s Oncology prom. She spent the night taking selfies with teenagers and dancing. It was a huge boost for the sick teens who were all undergoing or had undergone cancer treatment. Their families were so grateful for her appearance.
20. Storm Reid (2019) - takes friend's brother to prom
Image source Brand.com
Actress Storm Reid wore a beautiful sheer pink dress to prom which she attended with Yara Shahidi’s younger brother, Sayeed. If that's not cute then nothing is! Storm stayed for the whole evening and the other party-goers got in on the act by taking loads of selfies.
21. Kellan Lutz (2015) - accompanied New Jersey student

Image source Daily MailIn June 2015, Twilight hunk, Kellan Lutz, accompanied New Jersey student Brianna Siciliano to her prom. The two kept in touch and remained friends, ao 'Entertainment Tonight' reported. Brianna had won a contest to have a video chat with Kellan the year before.
22. The Chainsmokers (2017) - surprised students during prom

Image source Popsugar
Andrew and Alex of The Chainsmokers surprised students at Huntley High School back in April 2017. They showed up for a 10 minute performance during prom, thanks to a letter from a student sent weeks ago, together with the work of the school's principal. To sat a great night was had by all would be an understatement!
23. Bella Hadid (2018) - ran into prom-goers

Image source Daily Mail
After running into a group of prom-goers while in the middle of a fashion shoot outside New York City, Bella decided that she wanted to join the Oceanside, New York, teenagers prom bus! She attracted so much attention and posed for selfies with scores of teens.
24. Linda Hamilton (2011) - stood in for Betty White (Golden Girls)

Image source Marine.com'Linda Hamilton, 'Terminator legend, stepped in after Betty White at the invitation by Sgt Ray Lewis to the Marine Corps Ball in Westlake, Texas. Linda even made her own YouTube video for the occasion. She stated, 'Rumour has it that you like your actresses vintage. I thought I would just take a shot here and try to find you.'
25. Joe Jonas (2013) - turned up in disguise

Image source Daily Mail
After making a counter proposal to huge fan Shaina, who just wanted Joe Jonas to go to her college prom with her, the singer showed up to the Today
show in disguise and surprised the heck out of her. They eventually took photos together and reunited at his concert 3 months later.
26. Gigi Hadid (2013)- took sister with her

image source Teen Vogue
In 2013, Gigi Hadid had just starting out in the modelling world although she was still a big name due to her cameo appearances on 'The Real Housewives of Beverly Hills' (her mum was in it). She went to her own prom in a red Herve Leger gown and took sister Bella with her
27. Elle Eanning (2016) - prom clashed with Cannes Film Festival so ....

Image source Mashable
When the Cannes Film Festival clashed with Elle’s prom, her date flew out to recreate the event with her. She shared this image on Instagram saying, 'Reliving my Senior Prom! Thank you @basquitwat for flying out since I could not be home and making our prom night one to remember forever!'
28. Ronda Rousey (2015) - accepted Facebook invitation

Image source Mid-Day
UFC champion Ronda Rousey accepted a Facebook invite from Marine Lance Cpl. Jarrod Haschert in 2015 when he asked her to be his date to the Marine Corps Ball in South Carolina. She later told TMZ that Jarrod was 'a real gentleman and a real sweetheart. It was the only smiling I’ve been doing, I think.'
29. Juju Smith-Schuster (2019) - came to rescue of fan

Image source Yahoo! Sports
Football player Juju Smith-Schuster accepted a prom invite from a Pittsburgh Steelers' fan because his date got cancelled at the last minute. The two arrived, in matching velvet teal suits. Schuster wrote on Twitter, 'Got a DM from him a while back about needing someone to go with, decided why not, had a great night at his school!'
30. Dwyane Wade (2013) - turned down prom date but then turned up!

Image source Daily Mail
At first, NBA star Dwyane Wade declined Miami high school senior Nicole Muxo’s proposal on YouTube but he did go - to surprise her! He even took photos with her family beforehand. Nicole wrote on Instagram, 'Never be 2 scared to ask,' and 'They might just say yes… #dreamsdocometrue.'