Instagram/Kanye West Music Major sponsors PepsiCo, Diageo, and Rockstar Energy withdraw from London's Wireless Festival following the controversial booking of Kanye West as headliner. April 7, 2026 AceShowbiz - Two prominent sponsors have pulled out from London's Wireless Festival due to the controversial decision to have Kanye West headline the event this summer. Following the recent announcement by PepsiCo, which ended its decade-long sponsorship of the festival, the global alcohol company Diageo has also confirmed it will no longer support the 2026 Wireless Festival.