When the sun sets on the French Riviera for the day, the Cannes Lions revelers come out to play. The Cannes party scene has become the proxy battleground for influence, budgets, and status. Spotify's enormous beach structure is situated at the center of the action. The music streamer's soirées resembled a festival lineup: Mumford & Sons, Mike D, Central Cee, RAYE, Lykke Li, and John Summit. Not to be outdone, the huge stage at the Amazon Port hosted indie rockers The xx for a Tuesday night