We already told you all about Courtney Love’s vengeful reaction to her husband’s inclusion in Guitar Hero 5 as a playable character, but the drama gets even more tense today as Dave Grohl and Krist Novoselic, surviving members of Nirvana, spoke out against Activision and Guitar Hero 5.

“While we were aware of Kurt’s image being used with two Nirvana songs, we didn’t know players have the ability to unlock the character,” they said. “This feature allows the character to be used with any kind of song the player wants. We urge Activision to do the right thing in ‘re-locking’ Kurt’s character so that this won’t continue in the future.”

Activision quickly fired a statement back to the digruntled party stating they “secured the necessary licensing rights from the Cobain estate in a written agreement signed by Love to use the singer’s likeness as a fully playable character in “Guitar Hero 5,” which includes “Smells Like Teen Spirit” and “Lithium”

Looks to me like a situation of laxisdasical agreement without proper evaluation of the subject matter. What do you think?