Actor and TV show host Ruby Rose sparked a row on Monday after alleging that singer Katy Perry sexually assaulted her at a Melbourne nightclub more than a decade ago.

Model-actress Ruby Rose has accused Katy Perry of sexually assaulting her two decades ago.

While she did not address the allegations directly in the post, Perry, 41, wrote “I love you” beneath an image of her 2013 track “By the Grace of God.”