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Lady Gaga has canceled the rest of her Born This Way Ball tour due to a severe performance injury that will require surgery.

Gaga, who postponed four shows Tuesday night, has a "labral tear of the right hip," according to a post on LittleMonsters.com. She will need "strict down time" to recover after an operation. Tuesday, the singer said she was unable to walk.

Gaga's Born This Way Ball kicked off January 14th in Tacoma, Washington. 

If you have tickets to her Feb. 25th show at Verizon Center you can get a refund at the point of purchase.

SOURCE: MTV