Etta James Etta James

Jazz vocalist Etta James has been hospitalized with a blood infection.

The three-time Grammy winning singer of "At Last" was admitted to a hospital in Riverside, Calif., earlier this week with a urinary tract infection and sepsis, her son, Sametto James, told Reuters.

Check out photos of Etta James

"It was a really bad infection," James said. "Right now she's doing a lot better."James, 73, has struggled with obesity and underwent gastric bypass surgery in 2003.