Kanye Blagojevich Obama?

Odd reference in January 8, 2009's Huffington Post. In Jason Linkins' write up of From 'Barry' To 'Barack': Occidental College Video Has The Story

http://www.huffingtonpost.com/2009/01/08/from-barry-to-barack-occi_n_156418.html?page=4

This photo is captioned:

Here's the President-Elect, during a period of time when he was known as "Kanye Blagojevich Obama." [Not pictured: the Weather Underground.]



What does that mean? Is it a reference to Obama knowing Kenye West and Rod Blagojevich during the 80s? Is it implying that Kenye West and Rod Blagojevich were also Weather Underground? Was this yet another alias Obama had?