updated 05/24/2014 AT 1:00 PM ET
•originally published 05/24/2014 AT 12:30 PM ET
About 250 teens – and two ambulances – have gathered outside the 16th-century fortress hoping for a peek at Bieber, who sparked rumors he’d attend the festivities when he told an Italian journalist, “In a few weeks I will be in Italy.”
He was in the neighborhood – sort of. Bieber was photographed looking dapper in Cannes last week and later showed up in Monaco.
Bieber, 20, wouldn’t be a total surprise on the guest list. The singer is pals with Kardashian’s little sisters Kylie and Kendall Jenner, and they’ve partied at Coachella, grabbed dinner in New York City and cheered on Floyd Mayweather in Vegas together.
With reporting by JD HEYMAN and MARY GREEN