Harmonix and MTV Games have announced that a four pack of songs from pop superstar Lady Gaga, as well as a special Lady Gaga cover by South Park's Eric Cartman will be added to the Rock Band Music Store next week.

Lady Gaga Pack 01 will include "Bad Romance," "Just Dance," "Monster" and "Poker Face" and will be available for purchase as a pack or or as as individual tracks on Xbox 360 and PS3. The content will be available as single tracks only on Wii.

Additionally, a special version of Lady Gaga's "Poker Face," made famous by South Park's Eric Cartman, will also be available in the Rock Band Music Store next week. The track first appeared in the "Whale Whores" episode.