Hole singer Courtney Love feels that Kermit the Frog and the Muppets "raped" the memory of her late husband Kurt Cobain by bastardizing Nirvana's "Smells Like Teen Spirit." Here's the TMZ story. I haven't seen the 2011 Muppet's movie but from what I've gathered she's pissed about the barbershop scene with Jack Black. Courtney Love feels the song was used without her permission.
Here's Dr. Teeth and The Electric Mayhem Muppets doing a cover of Smells Like Teen Spirit.
Back in 2005 Love sold the rights to Nirvana's catalog. Primary Wave Music (PWM) has legal standing to license the song but before they granted permission to use it in the movie, PWM obtained permission from Nirvana's surviving members Dave Grohl and Krist Novoselic.
Dave Grohl has a cameo in The Muppets movie. Here's the press conference where director James Bobin talks about the Foo Fighters and Nirvana drummer.
Since we are on the subject of press conferences make sure you catch Shmonty's Press Conference weekday mornings at 6:20a on KDKB. It comes on just after the Hate Mail segment. Rumor has it that Shmonty was once a Muppet.