Kate Hudson and Lance Armstrong only had eyes for each other at Dolce & Gabbana's annual party in Cannes Friday.
The pair kissed and danced to old Madonna songs and other '80s favorites. "They were beaming at each other," a source tells PEOPLE. "So cute."
In a VIP room so packed that Petra Nemcova couldn't get in, Hudson and Armstrong chatted briefly with Cannes juror Natalie Portman, who was holding hands with her folk-rocker beau Devendra Banhart.