According to billboard.com, Morrissey is angry with the official label of Advancement, Sancutary:
Morrissey took to the Internet this weekend to clarify a previously announced booking at the upcoming Isle of Wight festival, for which he claims to have been confirmed in error. The former Smiths frontman also lashed out at his label, Sanctuary Records, and declared he would sign with a different company prior to the release of a new studio album.
A statement on Morrissey's Sanctuary-run official Web site blamed the Isle of Wight confusion on the artist's busy schedule. "The pressure of preparing the new album and losing his drummer [Dean Butterworth] earlier this month has made it impossible to do the gig without massively compromising both the gig and the album," it said.
But Morrissey rebutted that information on well-respected fan site True To You, claiming, "I have not ever, at any time, agreed to play the Isle of Wight Festival. The announcement that I would play was made by Sanctuary -- and it was their error. However, record companies will never take the blame for their own mistakes and Sanctuary's press statement ... reflects this."
"In truth, I am not at all under pressure with the follow-up to [the 2004 album] 'You Are The Quarry' -- everything is in hand, and ready," he insisted. "However, my contract with Sanctuary ended last year and hasn't been renewed."
You always have to side with the artist in this kind of thing, but something tells me that Morrissey might not be the easiest person to deal with.