Rod Stewart posted a message for Gregg Wallace on Instagram on Nov. 28 calling him a "bully" for alleged mistreatment of his wife Penny Lancaster on the U.K. 'MasterChef.' This came hours after news broke that Wallace would be stepping back from the show amid an investigation into sexual misconduct allegations.

Allegations of inappropriate comments were made by 13 individuals who Wallace had worked with across a wide range of shows he hosted over 17 years.

Rod Stewart hits out at ‘bully’ Gregg Wallace for ‘humiliating’ his wife on Celebrity MasterChef - ‘You had that bit cut out, didn’t you?’ singer said after Wallace stepped down as host