American Idol frontrunner David Cook was rushed to hospital after suffering heart palpitations throughout his performance on the hit show on Tuesday night.

The wannabe singer was treated for high blood pressure before returning to the contestant’s apartments where he is now “doing fine”, according to reports on TMZ.com. Fans feared for the 25-year-old after he failed to join his rival singers in the audience to view a performance by series six winner Jordin Sparks – who sang her new track with R+B hunk Chris Brown.

Cook has become one of the show’s favorites, wowing the audience with his rendition of country legend Dolly Parton’s Little Sparrow before complaining he felt unwell.

WENN