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Update 6/9: Iggy Azalea has taken to Twitter to clarify her comments about Lorde to Billboard. "My opinion on the makings of a touching musical tribute wasn't meant as some back door way to take a dig at her or the performance she gave," she wrote. "Sorry if it came across that way, it's not what I intended & I feel genuinely bad about it because I still think lorde is an awesome chick."

Iggy Azalea wants Lorde to respect her elders. Specifically, ones that invite her up to play with them during Rock Hall induction ceremonies. 

In the new issue of Billboard, the Australian rapper has some choice words for New Zealander Lorde and her Rock and Roll Hall of Fame gig with the remaining members of Nirvana, Dave Grohl and Krist Novoselic, this past April.

"Nothing against her, but I think when you're doing a tribute to someone that's dead, generally it should be the person's peer," Azalea said. "Lorde is not Kurt Cobain's peer. No matter if she killed the performance or not, I just don't think it's appropriate."

Azalea's currently burning up the charts in two ways: with her song "Fancy" featuring Charli XCX and as a feature on Ariana Grande's "Problem." 

Azalea didn't comment on the other women who played with Nirvana that night, St. Vincent, Kim Gordon or Joan Jett. So why she singled out Lorde is anyone's guess. But hey, when Nirvana calls you up to play with them, you play with them.