- PHOTOS: Lady Gaga on GMA
The company says the performer is suffering from a case of synovitis, which involves severe inflammation of joints.
Fans are advised to retain their tickets until rescheduled dates are announced.
The company says that refunds will be available at the point of purchase.
A February 16 performance in Detroit, Michigan, and a February 17 performance in Hamilton, Ontario, have also been postponed.
In a press release issued by Live Nation Entertainment, the singer said she was "devastated."
Additionally, the scheduled after party performance of her DJ, Lady Starlight, at Chicago's Dolphin lounge on Wednesday, February 13, has also been postponed until further notice. Organizers say all tickets purchased for the after party will be honored at a later date, to be announced.
For more information on Lady Gaga's tours and tickets, visit www.livenation.com.
