3. Justin Bieber
This superstar bought iPhones for his fans. One of his fans by Twitter hurdle @LaliBeliebsDemi poster her photo with Bieber tweeting: my picture with @justinbieber when he bought me an iPhone OMFG so unexpected. I love you, Justin!!! Thank you.
4. Taylor Swift
Taylor Swift gave her fan $90 to get a nice dinner for her birthday and also helped her get out of the boat just so they could snap a selfie together. Isn't that cool?
5. The Vamps
The Vamps lowered the price of their album just so their fans could afford to buy it. They tweeted: we appreciate that not everyone can afford everything we put up... So we thought... who wants our album for £4.99?
6. Miley Cyrus
Miley Cyrus invited a fan to join her backstage, the fan first wanted her to go to prom with him, but instead, she invited him backstage and made the experience even more memorable when she serenaded him with her song "Adore You"
7. Mila Kunis
Mila Kunis, when asked by Sgt. Scott Moore to attend the Marine Corps Ball with him as his plus-one, Mila graciously agreed. The duo attended the ball in North Carolina just a few months later.
8. Cody Simpson
Cody Simpson invited his fans on his boat. They just had to jump in and swim to him to get an invite.
9. Demi Lovato
She let her fans be in her music video. Not only did they not realize they were going to be in her lyric video, but they also didn't know she'd be there.
10. Fifth Harmony
These celebrities bought their fans pizza. A large group of Harmonizers lined up extra early to see the girls on the TODAY show, so naturally, they bought them pizza as a thank you.
How crazy and cool of these celebrities? What crazy experience have you ever had with a celebrity?