British pop star Amy Winehouse has sparked fears for her health after she was rushed to the hospital on Wednesday. The "Rehab" hitmaker - who was nominated for three MTV Video Music Awards on Tuesday - was taken to the University College Hospital (UCLH) in London, suffering from "severe exhaustion."

Shane O'Neill, a spokesperson for the star's record label Island/Universal, says, "Amy was admitted to the UCLH this morning, suffering from severe exhaustion. She was discharged this afternoon and has been advise to take complete rest. All scheduled performances are now postponed."

Winehouse initially sparked concerns for her health after cancelling a string of concerts last month, citing "exhaustion" and was ordered by doctors to rest.

During a comeback concert in Cornwall, England, in July, the 23-year-old stunned fans by hitting herself repeatedly on the head with a microphone and walking off-stage midway through her final song. Winehouse was also recently chastised by her father for her hectic party lifestyle.

She says, "Yes I've been bad. And yes I still get the odd rollicking (telling off) from my dad. In fact, he sat me down the other day and gave me a talking to about missing gigs. I got into trouble, but I'm not gonna do that any more."

-Amy Winehouse Pictures

(This news article provided by World Entertainment News Network)