Traveling can be really, really stressful. Maybe it’s my chronic lateness, but I always tend to get super nervous before a trip, and any interruptions are very unwelcome.

However, I think I could make an exception for what goes down in this next video. In fact, it’s probably the only thing I wouldn’t mind happening to me at the airport, except an unexpected upgrade to first class, or a surprise like these lucky holiday travelers got.

To celebrate their 500,000th customer, LOT Polish Airlines decided to surprise that one very lucky — and completely unsuspecting — passenger with an airline experience they will never, ever forget.

In the video, we see traveler Maciej Kołodziej arrive at Warsaw Frederic Chopin Airport for his flight to New York City. Nothing seemed out of the ordinary, until he hands the check-in agent his ticket and she starts serenading him back with the song “I Have A Dream.”

Cashing in on the flash mob craze, the airline teamed up with a local cast of “Mamma Mia” to have an impromptu musical right in the middle of the airport. As you can see, Kołodziej had absolutely no clue what was going on as more and more “travelers” started joining in on the performance.

We all know flying can be an awful experience sometimes. Wouldn’t it be great if it was always this much fun at the airport?!