The 1960s flower power songwriter, whose hits include Hurdy Gurdy Man, Sunshine Superman and Mellow Yellow, will perform at the London Palladium to mark his age milestone in May (16).

"I am delighted to be having my party at The London Palladium to thank all who have followed my work from the beginning, and to all who have just discovered me," he announced on Tuesday (08Feb16). "Come in shades and berets. Be cool, be there."