Kevin Costner had the neighbors over on Friday and it was quite the side yard shindig!. An all-star lineup of big name celebrities – Prince Harry, The Duke of Sussex, Kenny Loggins, Rob Lowe, Cameron Diaz, Zoe Saldana, Peter Noone, Alan Parsons, Richard Marx, Jeff Bridges, and Pink, among others, all donating their time and talents – and approximately 3,000 guests (donating hard earned cash) convened at the actor’s Summerland ocean view estate to support the work of One805, the nonprofit First Responder support-focused group formed in the aftermath of the Thomas fire and subsequent mudslides.