Lenny Kravitz in hospital

Rock star Lenny Kravitz has been admitted to a Miami hospital suffering severe bronchitis. The 43-year-old musician had been suffering a series of severe respiratory tract infections as well as the flu since mid-January and the illness has evolved into bronchitis.

A spokeswoman said Kravitz was suffering extreme dehydration and fatigue and doctors were unable to control it with outpatient treatment. They advised him to check into the hospital.

"He was taken to the emergency room at Mount Sinai Hospital in Miami for immediate treatment." His illness forced him to postpone a trip to Europe to promote his album It Is Time For a Love Revolution, which was released last week.