Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.

Gladys Knight

LINCOLN, CA - AUGUST 9: Gladys Knight performs at Thunder Valley Casino Resort on August 9, 2013 in Lincoln, California.