According to Us Weekly, the Biebs and Adriana had a swaggy time together in France and even hooked up.
"Justin pursued her hard," one of Adriana's pals spilled. At a private house party later that night, "they were talking nonstop," the insider added. "They went home together around 5 a.m."
Justin made sure to brag about his hangout with the beauty, too. He shared a snap of himself and the 32-year-old model on Instagram. Bieber captioned the pic, "I think she foreign, I think she foreign," referencing lyrics from his song "Confident."
Adriana's not the only "hot" celeb Biebs hung out with in Cannes, either. There are reports he got a lap dance from Paris Hilton, and left the club with her there one night too.
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Gallery | Justin Bieber's Famous BFFs