Sheryl Crow isn't letting a brain tumor interrupt her nationwide tour.
The 50-year-old revealed she has a fairly common type of non-cancerous tumor called a meningioma.
"These are almost always benign tumors and they rarely ever progress to anything beyond that," says Dr. Warren Selman.
Meningiomas grow from the tissue covering the brain. They are not in the brain itself.
Crow says she discovered the tumor last fall when memory problems prompted her to get a brain scan. But that may just be a coincidence. "Personally I think it's unlikely the meningioma caused the memory loss especially if they are just observing it at this point because usually that's associated with a larger tumor."
Meningiomas account for a third of all primary brain tumors. They are twice as common in women, and usually occur in adults in their 40's and 50's.
In the rare cases they do get big, meningiomas can cause symptoms like headaches and seizures. That's when doctors consider removing them.
Crow -- who is a breast cancer survivor -- is expected to undergo periodic brain scans to monitor her tumor.
"When anybody hears the word brain tumor obviously you're going to be concerned but if you have to have a brain tumor this is clearly one of the ones to have."
The Grammy-winning singer says she's happy and healthy and working on her new record.