MTV caught up with Tokio Hotel in the studio as they were recording their upcoming album, Humanoid, where the band's Tom Kaulitz majorly dissed his identical twin, singer Bill!

"I have more sex in my voice," Tom told the cameras. "Actually, the decision [for Bill to be the lead singer] was because of the securities. The securities asked us for it, because if I sing, there would be an escalation at each show. To calm things down, we went with Bill."

Burn.

But the subtle digs didn't stop there, Tom also said about his bro, "He needs to remember everything for the tour. I actually did all of the recordings up to now. He needs to learn everything for our tour, which is why we rented this studio. We'll check it out, and hopefully he'll manage the upcoming albums without me."

Tom talks about the time they all switched roles in the band, with Bill taking over the bass because "Bill was playing bass, because it's the easiest. He only had to play a few tones."

Tom, of course, said his turn on the drums was perfect. "Like clockwork."

As for Bill, he thinks he has the hardest job in the biz, due to the fact that he has to sing in both German and English.

"I believe no other singer has to remember so many different lyrics like I do," said Bill. "It's only the third album, and I already have 10,000 songs."

Sounds like the Kaulitz bros are cultivating a rivalry that may even top the Gallaghers'!