Sunday is the 25^th anniversary of Irma Thomas’ annual Mother’s Day concert at the Audubon Zoo.

(AP Photo/Mark J. Terrill)

Irma Thomas accepts the award for best contemporary blues album for 'After the Rain' at the 49th Annual Grammy Awards on Sunday, Feb. 11, 2007, at the Staples Center in Los Angeles.

Thomas, a queen of the New Orleans rhythm and blues scene, will be presented with a card signed by the attendees before she starts.

As always, mothers get in free and it starts at 2:30 p.m.

The zoo is located at 6500 Magazine Street, and attendees are asked to enter through the Tea Room gate, which is to the left of the front gate.