Jelly Roll is taking out his running shoes again.On Sunday, February 2, the 40-year-old country superstar (whose real name is ...

"Your music saved my best friend's life. Thank you for being unapologetically you and doing what you do," the note read ...

According to the network, Jelly - who was a guest mentor and performer during the last series - will "work closely with the 'Idol' hopefuls, giving them firsthand advice on how to ...