Aldi has been accused of "starting trouble" with Tesco after making a dig at the supermarket's prices.
It comes after Tesco posted a video on TikTok inviting people to "audition" for the role of the voice on its self-scanner machines.
In the original video, Tesco asked its followers to "duet" their responses, which involves posting another short clip recorded with users' real-time answers to the questions it was asking.