Machine Gun Kelly allows daughter Casie, 13, to give him a tattoo backstage at Hellfest

Machine Gun Kelly added some new ink to his body — thanks to his teen daughter, Casie.

“my daughter said summer vacation, we ended up at hellfest,” the “Forget Me Too” musician wrote via Instagram Tuesday alongside a photo of the 13-year-old giving him a tattoo on his forearm backstage at Hellfest Music Festival Friday.

The heavily tattooed rapper — who performed at the Clisson, France, festival this past weekend — included additional snaps from his trip with Casie, including one of Kelly holding his daughter’s hand as he takes a nap.

The “Emo Girl” rapper — whose real name is Colson Baker — also included a picture from their Dolce & Gabbana appearance on Saturday for Milan Fashion Week.

The daddy-daughter duo rocked all-black looks, with Kelly, 33, wearing a black jumpsuit, corset and cropped leather moto jacket.

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Casie coordinated with her father in her own corseted apparel, sporting a sheer-paneled LBD finished off with platform combat boots.

The “Bloody Valentine” rapper, who has been in a shaky relationship with fiancée Megan Fox, took Casie on her first European tour in October 2022 to promote his album “Mainstream Sellout.”

Kelly has also graced the red carpet with his daughter, whom he shares with ex Emma Cannon, a handful of times in the past.

While it’s unclear if Fox, 37, tagged along for the French music festival, the “Jennifer’s Body” star was spotted showing support for her beau in Germany on June 7.

The couple has reportedly been working to save their relationship since the two had a fallout in February.

The “Transformers” star’s support comes a month after a source told People that she and MGK were halting their wedding while the two worked things out.

“They are slowly working on reconciling but he’s totally in the dog house still,” the insider alleged last month.

“He’s doing whatever he can to get her back, and she’s making him work for it. It’s still an unhealthy dynamic though, and their friends just don’t see this lasting.”