Amy Winehouse is worrying festival bosses with a string of cancellations.
Unreliable Amy failed to show at French music festival Rock En Seine in Paris last week and is said to be facing legal action for her no-show.
Now gig organisers are reportedly unwilling to book her at all.
The Rehab diva is due to perform at Bestival this weekend but organisers say they already have a back-up plan in case she decides to cancel.
Bestival creator DJ Rob da Bank tells fans in his online blog, "If she can't do the gig, rest assured I do have a very good back-up plan. Have we ever let you down?"

...more 
Celebrity Lip Service: Trout Pout Or Real Deal?
Lindsay Lohan Accuses Dad Michael Of Threatening To Kill Her Mother
Gossip Girl Threesome Plot Sparks Anger From Parents
Amy Winehouse Horses Around In St Lucia
Stars' Freaky Feet!


Jessica Biel is unsure about a married future
Kristen Stewart
End Of Year Readers Poll: Vote For Your Sexiest Star Of 2008!
Angelina Jolie
Robert Pattinson
Paris Hilton