Kate Hudson and Cameron Diaz
Kate Hudson better watch her tongue when it comes to Cameron Diaz. Apparently, Kate is a little bit jealous that her ex, Alex Rodriguez, has moved on so quickly with the actress, and pals close to Kate told the New York Post that Hudson thinks Diaz is seeing A-Rod because she is "struggling to remain sexy and relevant."

Meowch! OK, Kate, calm your pretty little head down and here's why ...