The "What About Us" singer's husband, Carey Hart, shared an adorable photo of Jameson Thursday, with a heart drawn on his stomach and marks all over his right arm.
"Willz hooked Jamo up with some tattoos," Hart wrote, adding a tears-of-joy emoji.
While Willow likely did not get paid for her tattoo creations, she did make some money this week. On Tuesday, Hart posted a picture of Willow holding a baby tooth in one hand and a $100 bill in the other.
"Willz is gonna be the next major investment banker," Hart wrote in the caption. "We settled on 100 buck for 1 shot at pulling her tooth out. Was the best money I ever spent, and she got 20 weeks worth of tour per diem in 5 seconds."
"These two are by far the most prized accomplishments of my life," Hart wrote. "Love you kiddos, and I promise I will always be here for you. Thanks mama, for being such an amazing mama to these two Lil monsters."
Pink and Hart, a former motocross racer, have been married since 2006.
"The thing about parenting is you never know if anything you're doing is working," Pink told PEOPLE. "That's been the most humbling thing for me. In my head, I sound amazing and then I turn around and her eyes are completely glazed over. I have no idea. We'll see."
Pink admitted she has an "attached" parenting style and is a big believer in affection.
"I believe in needs being met and faith being implemented, and I believe in letting your kids know they can count on you, and that you'll be there," Pink explained. "My parents obviously did not believe in that and I worked out okay. I always tell Willow, 'I'm going to teach you the rules so that you'll know how and when to break them.'"
Pink resumes her international tour for Beautiful Trauma on July 3 in Australia. In March 2019, Pink will start a new tour of the U.S. and Canada, beginning with dates in Florida. The tour ends with a two-night stand at Madison Square Garden on May 21 and 22.
Photo credit: Instagram / @Pink