Imagine waking up on your birthday to the usual barrage of well-wishes from family members and old classmates on Facebook. Your friend has posted a mysterious video, and when you click play, your favorite celebrity is there, singing happy birthday to you, with a personalized message thanking you for being such a huge fan. You might wonder how your friend pulled off such a surprise, but thanks to a new app and website called Zwish, anyone can book one of these customized greetings. And don’t be scared off just because the platform seems high tech: Zwish is a surprisingly easy and often affordable way to put a smile on someone’s face. Here, we break down the ins and outs of this digital-age version of a fan meet-and-greet.

Zwish lets everyday people hire actors, athletes, artists, and celebrities of all types to create personalized video messages for any occasion. For example, you can hire Jubin Nautiyal, a famous Indian singer to sing your partner’s favorite song, or hire their favorite actor to leave them a video message as a specific movie character.

Thousands of celebrities and social media influencers are available for Zwish videos — they set their own price and still have final say over whether or not they complete user requests. For talent big and small, Zwish gives people a way to make money directly from their celebrity, and the service puts fans directly in touch with the artists they appreciate.