Harmonix announced today that Motörhead's "Ace of Spades '08" and Ram Jam's "Black Betty" have been added to Rock Band 4.

Each of the tracks can be purchased individually for $1.99. Ace of Spades '08 was originally included in Rock Band 2, and the re-recorded version of that song from that game has made its return in Rock Band 4. Black Betty is a new addition to the Rock Band series, and according to the developers, it has one of the most challenging bass tracks in the game.

You can watch a trailer featuring both songs below. Rock Band 4 is available on PS4 and Xbox One.