Lady Gaga's co-manager has teased fans by proclaiming that her new album is going to be "insane".

Speaking to That Grape Juice, Vincent Herbet said that the singer is currently working on the follow-up to 'Born This Way' whilst out on tour.

He said that fans will be faced with the "unexpected" on the record. When asked what people should expect to hear on her new album, he said:

"Just insane, great records. She's on tour right now, but it's just going to be a great record. Look out for the unexpected, when it comes to her - I'm very excited. We're doing it on the road right now, so it's a little hard, but it's going to be great."

As previously reported, Lady Gaga has today (May 31) broken the 25 million follower barrier on Twitter, calling herself the "luckiest girl in the world".