The Voice coach and Maroon 5 singer Adam Levine has never been one to mince words, but his surprise Twitter feud with Lady Gaga was, well, surprising.
He recently tweeted about an unidentified artist: "Ugh… recycling old art for a younger generation doesn't make you an artist. It makes you an art teacher."
"I unabashedly love writing and performing pop music for both myself AND everyone around me. That's It. It doesn't need any extra sauce."
Lady Gaga, presuming this was about her, responded:
"uh oh guys the art police is here."
In it, she references a number of famous works of art, such as the 1957 film The Seventh Seal and Sandro Botticelli's 1486 painting, "The Birth of Venus."
Her new studio album, due out in November, is also called ARTPOP and her live performances have increasingly embodied a performance art theme.
It's also not the first time Gaga has been accused of aping others' art. From Azealia Banks to Madonna, many have questioned her work's originality.
What do you think of Adam's comments?