Amber Riley to perform at All-Star game

'Glee' star, Tenors, Colbie Caillat on bill for Tues. classic

Amber Riley will bring her high school pep to the Major League Baseball All-Star game.

The "Glee" starlet will sing a set of songs and the national anthem before Tuesday's edition of the annual midsummer classic held this year at Angel Stadium in Anaheim, Calif., baseball officials announced Sunday.

The 24-year-old Riley plays young diva Mercedes Jones on the recently Emmy-nominated "Glee," which chronicles the musical lives of a group of talented high school outcasts.

Both "Glee" and the All-Star game air on Fox TV.

The Canadian Tenors will perform the Canadian national anthem before Tuesday's game, and country-pop hit maker Colbie Caillat will sing "God Bless America" during the 7th inning stretch.