On Thursday, March 4, the Fall Out Boy singer, 45, brought his 10-year-old son Saint with him as he attended the 21st Annual Desert Smash 2025 in Palm Springs, Calif. Wentz wore a black graphic T-shirt and a red baseball cap, putting an arm around his son.

Saint stood to the left of his dad, baring a striking appearance to the musician as the two made a rare public appearance together. Saint wore a white Dragon Ball Z T-shirt and wore his hair long, just like his dad.

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Wentz shares son Saint and daughter Marvel, 10, with partner Meagan Camper. He is also dad to son Bronx, 15, with ex Ashlee Simpson Ross.

In 2022, Wentz brought his sons Saint and Bronx to the Jurassic World: Dominion premiere in Los Angeles, where the trio posed for a family photo.

While walking the carpet, Wentz and his boys stopped to smile for a sweet picture, in which Bronx stood nearly taller than his dad when standing beside him.

The teenager wore a white hoodie and sweatpants for the event, while his younger brother wore a graphic t-shirt and sweatpants. Wentz looked stylish in a brown and white argyle sweater and black pants.

Although Wentz doesn't often talk about or bring his kids in public, the singer spoke to PEOPLE in 2018 about how he co-parents son Bronx with Simpson Ross.

"We co-parent really well," Wentz said of his relationship with Simpson Ross. "I have to say, I have really good co-parents to deal with. [Ashlee and Evan] are both communicative and easygoing."

"For Bronx, it's basically the only life he's really known," the rocker added. "So it's normal to him, and he's really good at it. Our schedules can be crazy, so we've been good about making sure Bronx has balance."