Kenny Chesney turned the Big 4-0 Wednesday night and took time out to party with 200 of his closest friends. It was a star-studded night at the hot Nashville nightspot Cabana. A note on the door of Cabana simply said "Back room closed for private party" but gave no indication of the country star and the rest of the star-power inside.

Rockabilly hillbilly Jason D. Williams provided the entertainment for the party goers. At one point in the evening he handed the microphone over to the birthday boy to perform a wild rendition of "I'll Fly Away" with back-up singers Faith Hill and Kellie Pickler.

Former "American Idol" contestant Kellie Pickler has some advice for the new Idol contestants. According to an article in People, she warns that the people around her changed when she found success on Idol.

Pickler was on the fifth season of "American Idol" and finished in sixth place. She has gone on to success as a country singer, with her debut album "Small Town Girl" selling over 700,000 copies. Three of her singles also made it onto the U.S. Billboard Hot Country Songs chart and two on the Billboard Hot 100.