Iggy Azalea feels Lorde's recent performance with Nirvana was "inappropriate".
Lorde performed with the surviving members of the band at the Rock and Roll Hall of Fame Induction Ceremony on April 10 in Brooklyn, along with Joan Jett, St. Vincent and Kim Gordon.
Azalea is slamming the decision to involve Lorde, saying the New Zealand-born star didn't belong on stage with the others.
"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," she told Billboard magazine.
"Lorde is not Kurt Cobain's peer. No matter if she killed the performance or not, I just don't think it's appropriate."
This is not the first time Azalea has started a feud with another star - last year she was fighting with Azealia Banks. According to the Aussie star, Banks was ungrateful and untrustworthy.
"She's biased about everybody and everything, even towards the people who help her," Azalea told Shut Your Pretty Mouth magazine.
"She even talked s**t about the fashion industry after they basically gave her a career. I don't think anything about that girl, man."
Lorde is also known for expressing her feelings about her peers, most notably about Taylor Swift and Selena Gomez. The singer has accused Swift of being a bad role model for young girls.
"Taylor Swift is so flawless, and so unattainable, and I don't think it's breeding anything good in young girls," she told New Zealand's Metro.
Lorde and Swift have made up and are now known to be good friends.
- Cover Media