Her ivory-tickling fingers have undoubtedly got the rhythm, but Delta Goodrem's been busting "unrhythmic" dance moves according to Marlon Wayans.
The American comedian has dissed the Australian songstress in a humorous Instagram selfie he took while apparently trying to enjoy a Beyonce and Jay Z concert during their The Run tour in Los Angeles.
The snap, which has gone viral, shows Wayans with his eyes awkwardly raised as he watches a seemingly oblivious Goodrem groove along to the music.
"Man I got the most UNRHYTHMIC WHITE WOMAN dancing next to me at the jay and bay concert... This b**** dancing to AC/DC," he captioned the picture.
Wayans' followers - one of which is Goodrem - were quick to point out exactly who the 42-year-old actor was dissing.
"That b**** you're standing next to is one of Australia's famous singers," wrote one.
Others backed up Goodrem, while some laughed along with Wayans.
"On The Voice when she gets up and does her pathetic excuse of a dance and then press the button...I want to throw the remote through the TV!," one Instagrammer jibed.
Delta Goodrem seemingly hit back at the comedian's post on her Twitter account with a video of Seinfeld's Elaine in a dance scene.
Had a blast last night. ?? D x https://t.co/2bD5hVJ6IA— Delta Goodrem (@DeltaGoodrem) August 5, 2014