Kristen Bell returns as host of this year's "CMT Music Awards", but TOBY KEITH was NOT asked back as her co-host. It doesn't sound like Kristen will miss him though. She Tweeted, "Yay! Heading back to Nashville to host the #CMT Awards, June 5th! This year I have an awesome, new co-host! Who do you think it will be?" Bell later tweeted "My new co-host is going to have to rest up from his stadium shows because we are going to blow it out at the #CMTawards on June 5 on @CMT"... Who do YOU think it is? I'm guessing Kenny Chesney after that last tweet!