LONDON (AP) -- Amy Winehouse has been released from a London hospital.

Spokesman Chris Goodman says the singer was discharged after spending the night under observation because of a reaction to medication.

He says the jazz-pop diva is feeling fine.

Winehouse was taken to the emergency room of London's University College hospital by an ambulance called to her north London home yesterday.

It was the second time in as many months that the Grammy winner was hospitalized.