Amy Winehouse‘s performance at The Grammys this weekend is in dire jeopardy after a visit from London Police on Tuesday (Feb 5) concerning a recently leaked video in which Winehouse is seen smoking crack after taking cocaine, ecstasy pills and Valium. Reports claim authorities questioned the troubled singer for two hours on the matter.

Even without yesterday’s interrogation, Winehouse (who has been nominated for six awards including “Record of the Year” and “Song of the Year” for “Rehab” and “Best Album” for Back to Black) was still facing obstacles vying to attend the Grammys. U.S. officials still have not granted the songstress a Visa because of a previous drug charge.

Winehouse is currently seeking medical help at a local rehabilitation center, possibly in the wake of the leaked incriminating video.