LONDON, England (CNN) -- Singer Amy Winehouse was free on bail Wednesday after London police briefly arrested and questioned her in a case involving her husband, police said.
Amy Winehouse with husband Blake Fielder-Civil at the MTV Europe Music Awards in Munich in November.
Police would not confirm the singer was arrested and freed, saying only that the case involved a 24-year-old woman, but the singer's representative confirmed it was Winehouse.
A spokesman for the Metropolitan Police in the London borough of Hackney, where Winehouse was arrested and questioned, said she was released on bail and would return in March pending further inquiries.
Winehouse representative Tracey Miller downplayed the arrest, saying it was common procedure during questioning. She said Winehouse went in voluntarily.
"She was not charged and has since left the police station," Miller told CNN.
The arrest is the latest in a string of problems for the singer, who has become as famous for her drug and legal troubles as for her Grammy-nominated soul-inspired music.
Winehouse's husband, Blake Fielder-Civil, is currently in jail on charges of perverting the course of justice following a bar fight.
The "Rehab" singer was pictured earlier this month wandering a London street barefoot, wearing only jeans and a bra, and appearing disoriented.
Soon after her husband's arrest, Winehouse slurred and stumbled through her gigs and derided her fans, who booed. She later canceled all her concerts for the rest of the year.
Winehouse went to a drug rehab center in the summer, but in October, she and her husband were arrested at a Norwegian hotel for marijuana possession.
Her parents have publicly expressed concern that Winehouse is succumbing to the pressures of fame.
Winehouse received six nominations for next year's Grammy Awards, including best album for her second release, "Back to Black." E-mail to a friend 
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