The purple one turns down offer of joint tour
The purple one will perform at his local Macy's
The star sets his sights on Hollywood
Tickets could cost a staggering $15,000
Demand causes internet booking site to crash
Amy Winehouse and Gnarls Barkley saluted during London show
The news comes hot on the heels of his tour announcement
And he wants Amy Winehouse to join him
40,000 artists to feature
Critics allege he used his guitar as a phallic symbol