Lady Gaga's producer has promised her next album will be "shocking".
RedOne - who was behind Gaga's biggest hits 'Just Dance', 'Poker Face' and 'Bad Romance' - has worked on two new tracks for the singer's forthcoming third album, and claims the new songs will go against people's expectations.
RedOne - real name Nadir Khayat - told Billboard.com: "It's going to be shocking, shocking, shocking!
"You never want to go too far from your brand - people love you for a reason. But we still want to give them something with a kick, something that makes them say, 'Oh my God! We didn't expect this!"
He added he encouraged Gaga to work with other producers on her album - which is set for release next year - although he wouldn't confirm who has been involved in the project.
RedOne added: "I got a sound out of her, and that made it easier for other producers. Her sound is so defined that no matter what people can follow it. That sound belongs to her."
Lady Gaga has previously described the new album as: "My absolute greatest work I've ever done: The message, the melodies, the direction, the meaning. It is utter liberation."
Gaga has already previewed one new track, 'You and I', from the record, on her current 'The Monster Ball' tour.
Gaga has also vowed to release the title of the album at midnight on New Year's Eve in typically spectacular style, saying: "I think I'm gonna get the album title tattooed on me and put out the photo."