Lady Gaga Postpones Purdue Show Due To Exhaustion

WLFI-TV in Lafayette reported that a police officer took the stage after the opening acts and announced Gaga's illness to the sold-out crowd after paramedics arrived backstage and found the singer struggling to breathe.

Gaga tweeted about the incident, explaining to disappointed fans, "I've been crying for hours, I feel like I let my fans down 2nite. An hour before the show, I was feeling dizzy and having trouble breathing."

She further explained that paramedics came to her aid and told her that she was suffering from an irregular heartbeat, "a result of exhaustion and dehydration." Gaga, 23, is in the midst of her Monster Ball Tour, which is slated to head over to Europe in early February after U.S. dates wrap on January 24 with a four-night stand at New York's Radio City Music Hall.