Particularly when she is serving, the noise that is made by the Australian Open champion has been compared to a number of sounds - including that of a Jumbo jet taking off.
Redfoo, who is a friend of the Belarusian player, has mixed her grunt into a new single due for release in the coming weeks.
"It's my grunt. It's not my vocals," Azarenka clarified to reporters. "I don't take high-key or low-key there. It's just natural."
Azarenka is currently in Melbourne, where she has reached the quarter-finals of the Aussie Open.