Ken, first, it's been confirmed that Kelly Clarkson is going to appear March 11. West has also been confirmed for that show. Trust me -- I will LOVE seeing Kelly and will fast-forward over West's appearance.
Kanye West is a rapper/hip-hop "artist" (I use that word very advisedly). Here's a photo:
Like many rappers, he's essentially a dressed-up street thug. He's been involved in a number of controversies during his career. Here's a few:
In January 2006, he appeared on the cover of Rolling Stone in the image of Jesus wearing a crown of thorns.In the song "Crack Music", West rapped, "How we stop the Black Panthers?/Ronald Reagan cooked up an answer." That referred to the black/liberal conspiracy theory that the Reagan administration intentionally placed crack cocaine in the ghettos of the United States.
Demonstrating his hatred of President George W. Bush, in a 2006 live orchestral performance of "All Falls Down", West replaced "the White man gets paid off of all of that" (a reference to HIV-Aids) with "George Bush gets paid off of all of that."
On September 2, 2005, during a benefit concert for Hurricane Katrina relief on NBC, West said, "George Bush doesn't care about black people."
He's been arrested a couple of times for assault and felony valdalism.
West is a total scumbag.