Amy Winehouse is in the doghouse for the second time in as many weeks, arrested again—this time in connection to alleged possession of a controlled drug—after voluntarily turning up at a London police station for questioning.

The Grammy-winning singer appeared at an east London station this afternoon for grilling on her involvement in a video leaked to Britain's Sun, which the ever-vigilant tabloid in turn handed off to the London Metropolitan Police last January, featuring Winehouse talking about and allegedly taking drugs.

"Amy Winehouse voluntarily attended a London police station today by appointment," publicist Tracey Miller told E! News. "She was arrested in order to be interviewed and is cooperating fully with inquiries. The interview relates to a video handed to police earlier this year."

A police spokesman, meanwhile, confirmed that the trouble-prone singer has been remanded into police custody as a result of the grainy footage.

"Around 1 p.m. today a 24-year-old woman from the Camden area attended a London police station by arrangement and was arrested in connection with the alleged possession of a controlled drug," the spokesman said.

"She remains in custody. This is in connection with an investigation connected to footage passed to the Metropolitan Police on Jan. 22."

The video, taken at Winehouse's home, shows her searching for a cat, inhaling fumes from a pipe and discussing having taken a Valium earlier in the night.

It's Winehouse's second arrest over the past couple weeks. On April 25, after turning up to a London police station for questioning in a separate incident, namely head-butting a guy in a bar, she was arrested for common assault. After spending the night at the station, Winehouse was released the next morning with a caution.