Why, because they don't have talent? Both of them have more musical talent in one of their hair follicles than Ellen and Simon put together and multiplied to the 10th power. So they're at least qualified in that aspect. They are, you know, singers.
Tyler especially, like him or not, was a true showman and was at one time part of a damn good rock songwriting team. I'm not a huge fan of Aerosmith's music, but the guy has credibility.
I'm not thrilled by this or anything, but it could definitely be worse. And I can even see it, maybe, in some weird way, actually working pretty well.
JLo has fallen out of the spotlight, but at one point she was one of the biggest stars in this country. Great smile, warm personality, she even seemed to have a bit of a quick wit if I remember. I could see her becoming a popular judge on this show.