Activision boss Bobby "What, Me Worry?" Kotick has a well-established routine for dealing with record labels. When it comes to Guitar Hero, they take their small cut of the profits, they get their songs on the game, they go quietly into the night. Helps Activision make a ton of money from the games, but it also looks like it cost them a deal to get the Beatles on Guitar Hero. Speaking with Reuters about said deal, Sony/ATV CEO Martin Bandier has said Activision's hard-ball stance with record labels was the driving force behind MTV scoring The Beatles catalogue:
It was presented as if they were doing the music business a favour. It's true you can choose other types of music, and somewhere along the line someone's going to do it for free for the exposure ... When it comes to the Beatles, the leverage changes. We're very happy with the terms of our arrangement with MTV.

So
Signing the Beatles (or at least the people handling their song rights) to a music game can't have been easy for MTV. And it definitely can't have been cheap. While not disclosing just how much MTV paid them for the rights to the Fab Four's tunes, Martin Bandier - who is CEO of Sony/ATV Music Publishing - has said:
During a teleconference being held by Apple Corps, Ltd and MTV this morning, the two companies, along with Harmonix, announced an exclusive partnership to create a brand new video game featuring the music of the Beatles. This seems to be a new game that will allow friends and families to experience the music of the band in an all new way.
The Beatles in my Rock Band ? Believe. Confirming that
Despite the fact many parts of Europe are only just getting Rock Band 1, a PR company hired by EA to handle the series has told Eurogamer that the UK can expect to see Rock Band 2 "this side of Christmas". EA UK proper have of course since denied this, saying a date is yet to be announced, but that sounds more like ass-covering than genuine ignorance.
And not just any Motley Crue album. It's Dr. Feelgood. The announcement comes not from Harmonix, and not from MTV, but from the Crue themselves (or, at least their publicists), with a small note on the band's imeem portal letting us know that the album most people will say is their crowning achievement will be available for the game starting October 14. For reference, this is the album with Kickstart My Heart on it. Not interested? You should be looking yourself in the mirror and wondering why you spent all that money on a game called Rock Band.
Between hearing the