Less than a week after Renee Zellweger (search) filed for an annulment from Kenny Chesney (search), the country music star assured fans, "I'll be OK."

"I'm all right. I'm good. There have been better times, but I'll be OK," Chesney told Country Weekly magazine for its Oct. 24 issue, on newsstands Oct. 10. The interview was conducted Monday at the singer's home outside Nashville, Tenn.

In court papers filed Sept. 14, Zellweger listed "fraud" as the reason for the breakup after four months of marriage. The "Bridget Jones" actress and Chesney married in a surprise Caribbean island ceremony in May after first meeting in January.

"I hit everything so hard this year," Chesney said. "I had the biggest tour I've ever done, I had a record to finish that was real important to me, and, of course, I had something new in my personal life and I was trying to do that too. It really ended up being too much."

Chesney, 37, was named Country Music Association entertainer of the year in November, while his "When the Sun Goes Down" was named album of the year.

"I'm tired right now, but by next year, I'll be excited to get back to it. And it'll be about the music again, not about the sideshow."