It looks like Michael Phelps is going to be crazy in demand.  For starters on Monday he will guest on The Tonight Show with Jay Leno.

On September 13 he opens the new season of Saturday Night Live.

And it has been confirmed that he  taped a cameo appearance on Thursday for Entourage`s fifth season which premieres September 7.

On top of all that, the 23 year-old has just signed a deal to write his life story in a book entitled:  Built to Succeed.

I`m sure this is only the beginning of a very promising future. Well deserved.

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