I would travel for a year, which would give me time to find some places and people to personally donate money to / invest in.
After this:
Set up a studio fit for a king. One half for music and the other for art.
After this, I'd be working towards:
-Clothing brand
-Record label
-Nightclub events
-Extreme sports events (In conjunction with the above)
I would also set up my own Café (With various types of coffee, for the lover) and brand it with the above studio. One in Swindon to start, followed by one in Amsterdam. More if they go well.
I suppose after that I'd better look at buying some property abroad to escape the madness of everything above.
Eventually I'd have my hands in all of the arts. Then when my prestige is of an adequate level, I will showcase other artists (any form) on a TV series which is produced Dr.Who style - The featured artist having a hand in the production.
Or something along these lines anyway...
...Of course the obligatory money to family etc etc. It should go without saying!