Paul McCartney performs with what's left of Nirvana — Dave Grohl, Krist Novoselic, and Pat Smear.

At the Concert for Sandy Relief, they played a new song:

It was a stomping riff like a grunge homage to the Beatles’ “Helter Skelter,” and it looked like Mr. McCartney was having fun belting lyrics like “Mama, watch me run/Mama let me have some fun” as the band bashed away. 

Would Kurt Cobain have approved? On the one hand, why should that matter? He checked out. But also:

The Beatles were an early and lasting influence on Cobain; his aunt Mari remembers him singing "Hey Jude" at the age of two.

That was Paul McCartney he was imitating.

"My aunts would give me Beatles records," Cobain told Jon Savage in 1993, "so for the most part [I listened to] the Beatles [as a child], and if I was lucky, I'd be able to buy a single." Cobain expressed a particular fondness for John Lennon, whom he called his "idol" in his posthumously-released journals, and he admitted that he wrote the song "About a Girl," from Nirvana 1989 debut album Bleach, after spending three hours listening to Meet The Beatles!

So maybe he preferred John, but Paul's the closest you can get to John these days, and there was quite a bit of Paul on "Meet The Beatles."