Lenny Kravitz and Steve Miller DLC heading to Rock Band?

Lenny Kravitz and Steve Miller band are allegedly slated to be the next downloadable content packages for Harmonix's Rock Band platform.

The Kravitz songs to be included in the ever-growing library January 13 are the ones you would expect:

Are You Gonna Go My Way
Freedom Train
Let Love Rule
Mr. Cab Driver

The two Steve Miller band songs to be made available on January 20 are something to behold:

Space Cowboy
The Joker