The pop star's Italian fans are swarming the Forte Di Belevedere in Florence, where Kim Kardashian and Kanye West are tying the knot after lavish pre-wedding celebrations in Paris.
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.
And Kardashian, 33, first forged a friendship with the much younger Bieber in 2010. After meeting at the White House Correspondents' dinner, they posed together for a beachy photo shoot.
With reporting by JD HEYMAN and MARY GREEN