Plot: VINCE VAUGHN and his mother SHEA VAUGHN are here to tell Ellen about Shea's new book -- which might hold the key to defeating stress and finding total well-being! Then, for the first time ever, it's BONO! The U2 frontman and rock legend will be talking to Ellen about her new role as a Special Envoy for World AIDS Day, and the RED campaign. And, she's George Clooney's newest co-star and there's already major Oscar buzz about this young star's performance