What were they thinking?

I don't understand why Earth, Wind & Fire was playing with Chicago. Seriously, Earth, Wind & Fire is greatness, whereas Chicago is the epitome of spare. Seriously, how can you even have Verdine White's bass on the same stage as Robert Lamm's keytar... Luckily, EWF is now playing with Chris Botti, and incidentally, they'll all be in Dallas tomorrow night.