Amy Winehouse missed a crucial Brit awards rehearsal after learning her jailed husband has been trading signed photos of her for heroin, it’s claimed.

The Rehab singer was set to run through her performance ahead of tonight's ceremony but reportedly failed to show after pals dished to a tabloid about Blake Fielder-Civil’s seedy scheme.

A source tells the The Sun : “Amy was supposed to rehearse on Monday, but didn’t show up after she discovered Blake had been trading pictures of her for drugs.

“It’s a real shame she wasn’t there for the rehearsal. Everyone got really worried.

“She is part of a medley, with Mark Ronson and Adele, and Daniel Merriweather, so it needs to run smoothly. It’s not just her standing on the stage on her own and singing.

“It’s sad Blake has sent her into turmoil again just before her big night. She’s been working so hard to get her head together for this.”

Amy can swap marital war stories with Sir Paul McCartney, who she will also be performing alongside at the Brits.