Veg Cred: We all know how Jessica Simpson feels about Carrie's veganism (or maybe just Carrie in general), given she walked around with a "Real Girls Eat Meat" t-shirt while dating Underwood's ex Tony Romo. Shots! But here's what the hot country singer had to say for herself:"I stopped eating beef at 13 and stopped eating all meat a few years ago. I would feel guilty that what was on my plate was walking around yesterday. Either I could live with that or stop eating meat. I choose the latter, and I