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Lady Gaga has apologised for the track listing for Artpop not being released on time.

It was reported that the Bad Romance singer would release the names and order of songs for her third studio album on 29 September.

When the details weren't announced, fans started to complain on Twitter.

The singer, 27, : "I'm sorry the track listing is late monsters. A few more squirrels snuck into the Artpop tree. Don't worry it will be worth it!"

There has been no confirmation of when the official announcement will be made.

Artpop is set for release on 11 November.

In the past week, Lady Gaga has been tweeting about getting the album done on time.

"In the final days finishing Artpop," she tweeted.

"I feel like an atelier (the workshop of an artist). refining seams. ironing fabrics. needling the last thread of my couture creation."

The singer also tweeted about fans waiting outside her studio until 5am.

Lady Gaga opened the iTunes Festival last month with a set made up of tracks from her new album.

The event came to a close on 30 September with a show from Katy Perry.

It has also been announced that she will headline the first YouTube Music Awards with Eminem and Arcade Fire in New York in November.

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