With the tough rivalry between Rock Band and Guitar Hero, the folks at Harmonix and MTV are pulling all the stops to come up with something innovative. We’ve all seen something tied to Lego and actually worked – Star Wars, Harry Potter and Indiana Jones, to name a few.

Announcing – Lego Rock Band! The secret was short lived when some folks at GDC 2009 (Game Developers Conference 2009) had some photos on their slides.

So, the folks at Harmonix announced the release of the game this year (2009).

1Up called it a family friendly system with some songs revealed:

• “Song 2″ — Blur
• “Kung Fu Fighting” — Carl Douglas
• “The Final Countdown” — Europe
• “Boys and Girls” — Good Charlotte
• “So What” — Pink

Meanwhile Rock Band still has Pearl Jam and Beatles slated for a September release while Guitar Hero is riding on the powers of Metallica to bring home the bacon.

Lego Rock band is slated for a September release too.

Let’s see who wins eh?