Amy Winehouse
Amy Winehouse Reuters

A self-portrait of late Amy Winehouse, smeared with the singer's blood, has been put on auction. The portrait, Lady Like, was painted by singer Pete Doherty, who was a close friend of Amy, in collaboration with her.

The portrait and other paintings are put on auction by Doherty. The collection include his work at the Cob Gallery in London, paintings smeared with his own blood, private diaries, guitars, clothes and other personal items, reports the Huffington Post. The paintings with Doherty's blood are expected to sell for $15000 or more.

In February, there was another auction of Doherty's work that went on for 10-days, where he sold 15 blood paintings. At that time, Winehouse's Ladylike painting was put on exhibition, but was not for sale.

Amy was on the phone to her dad when she did that [painting]. She said, 'Dad, I'm with Pete and he's making me draw with my blood!' He didn't like me much, her dad, Doherty told the Independent in February.

Amy Winehouse and Doherty had been rumored to be more than friends in the past, but they had always denied it. They had always maintained that they were really close friends.

However, Amy's father Mitch does not seem to even believe that the painting has Amy's blood on it. ''Do you believe that Amy painted that picture in her blood? Absolute rubbish,'' Amy's father Mitch tweeted.

Lady Like is expected to fetch between £50,000 and £80,000 ($80,000-$129,000). According to the Independent, an undisclosed amount will go to the Amy Winehouse Foundation, which aims to help young people.

Check out the paintings here.