I just received Horton's goodie..1 cap,1 T-Shirt  and 2 complimentary passes. Thanks to Twentieth Century Fox Film (M) Sd. Bhd.

Idol Rocker Cook "Fine" after Health Scare 

Los Angeles (E! Online) - For the first time, David Cook wasn't able to rock steady.

The American Idol contestant was rushed to a Los Angeles hospital following Tuesday night's performance show after experiencing what were likely stress-related heart palpitations.

"He was feeling light-headed," a source on set told E! News, adding that paramedics were called to check the singer's blood pressure during a commercial break just prior to his performance.

Despite his palpitations, Cook insisted he go on with his performance and only after his minute-and-a-half in the spotlight did he get proper treatment.

"He went on and afterwards he went to the hospital to be checked out for high blood pressure and high anxiety."

After examining the young singer, who was suffering from an accelerated heart rate and a spike in blood pressure, a doctor gave him medication to bring his blood pressure down and Cook was discharged. 

He's currently back at the L.A.-area hotel where he and his fellow contestants are staying this season. "He is fine and not at the hospital," another source told E! News. 

While the timeframe surrounding Cook's ailments is currently unclear, TMZ reports that producers wanted the 25-year-old Missouri bartender to head to the emergency room before the show, which starts taping at 5 p.m. PT, was over, but that Cook wanted to stay until the end.