Lady Gaga: next single will 'shock'

Lady Gaga's next single will 'shock' according to long term collaborator RedOne.

The follow up to 'Born This Way' will provoke strong reactions, the producer told MTV.

He said: 'Next one! I'm not gonna tell you the title, but the next single, it's...I don't want to say. It's gonna shock.'

Vogue reported the next single would be 'Judas', but Perez Hilton denied the claims.

RedOne also said he was working with U2.

'I'm working with U2 and Bono and them. I'm a guitar player. I'm a musician. A lot of people think RedOne is a synth guy, but I'm a guitar player, I'm a singer and all of that.'