Credit: Michael Loccisano/Getty Images

Sad news for Blake Shelton.

The 35-year-old country superstar and The Voice mentor is grieving the Tuesday passing of his father, Dick.

"Mr. Shelton, who was in declining health this past year, was surrounded by loved ones in Oklahoma upon his passing this evening," a rep for Shelton told Us Weekly in a statement.

As the singer mourns with his family, he has announced plans to reschedule four dates through next week on his Well Lit & Amplified tour. His stops in Bismarck, N.D., Rapid City, S.D., Bozeman, Mont. and Billings, Mont. will be delayed until late March.

"I appreciate your understanding during this difficult time and thank you for all your prayers. Your support means the world to me. I love you guys," Shelton told Us in a statement.

For more information on Shelton's makeup dates, visit his website,