Gene Simmons, Alice Cooper, and Ozzy Osbourne certainly don’t behave like mama’s boys.

The trio are beloved for their outrageous stage antics – which respectively include breathing fire and spitting blood, biting the head off a living bat (accidentally), and submitting themselves to onstage beheadings and electrocutions.

But as you can see in the photos below, all that mischief goes right out the window when their mothers show up. Suddenly even rock’s most unruly stars are dressed nicely, standing up straight and smiling.

Simmons, in contrast with his notorious photo book-keeping ways, has always been quick to show love and respect to his mother Flora.

He dedicated his 2001 book Kiss and Make-Up to Flora, noting that as a teenager she “endured unspeakable horrors in the concentration camps of the Nazis and who used reserves of strength I can only imagine to survive and even thrive.”

After his parents were divorced, Simmons and his mother moved from their home country of Israel to America, where she worked long hours six days a week sewing buttons onto jackets to make ends meet.

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Despite these struggles, Simmons said his mother never complained about her lot in life. “All she ever talked about, and only every once in a great while, was that the world is a big place, and there are some good people and some bad people,” he recalled in Kiss and Make-Up.

“To this day, I am amazed that she had that self-control,” he continued. “It’s proof that my mother, ethically, morally, and in all other ways, is a much better person than I will ever be. She had at that time, and still has, an abiding trust in humanity. She still believed the world is a good place.”

When Flora died at age 93 in December of 2018, Simmons had a simple message for his fans: “I would urge all of you, to run over, put your arms around your mother, kiss her and tell her how much you love her. Do this every day!”