John Mayer is in talks to host a Variety Show on CBS according to TMZ. Seriously John Mayer might be a good singer, he might be good with the A-Lust ladies, but when it comes to comedy he is so unfunny. If CBS decides to hire him to host a Variety show, I think that decision will be as smart and when CBS gave Katie Couric the 6:30 news. How many millions of viewers has that show lost since she started anchoring it? And they didn’t have that many to lose…