Amy WinehouseAmy Winehouse has reportedly checked back into hospital after her two performances in two days.

After singing at the Nelson Mandela 90th Birthday Concert in Hyde Park on Friday and at Glastonbury last night, Amy is said to have travelled back to London and the £2000-a-night private hospital, The Clinic.

A source explained: “She’s back at the Clinic. She likes it there and feels secure. She doesn’t have any worries while she’s in there.

“She even went back after the show on Friday night because she prefers it to her home.”

Both performances have been criticised for being patchy - with her slurrying the words and singing out of tune at times, largely attributed to her current chest infection - and for her behaviour on-stage, including spitting her chewing gum into the audience and apparently hitting an audience member as she walked around at the front of the crowd.

Amy was guided back onto the stage by security staff after the incident, which is said to have been provoked when the audience member grabbed at her infamous beehive.

An onlooker explains: “Even though the show was a bit of a shambles, most of the crowd were loving it and Amy went down to see the people at the front.

“She had her hand in the crowd and someone tried to grab it, then another person tried to grab her hair, causing her to react instinctively.”

In between songs, Amy made frequent references to her jailed husband Blake Fielder-Civil, who is currently awaiting sentencing for assault and perverting the course of justice - at one point, she told the audience: “My husband is out of jail in two weeks”.

She also dedicated her hit ‘Back to Black’ to Blake, saying: “This one was another one where I never thought I would see Blake again. I said, ‘Blake I never thought I would see you again’. I thought I would die with the man and then never see him again. I love him.”

Certain sections of the audience were less than impressed with her commentary but when they began booing, Amy took it in her stride saying: “Don’t boo. I’ll find your phone and ring your mum and tell them about your bad manners. Manners cost you nothing.”