Dexter Holland

Frontman for the band Offsprint
Also competes in triathlons, is a licensed pilot and has a Ph. D in molecular biology

He earned his Ph.D. at the University of Southern California in 2017, defending his dissertation, titled Discovery of Mature MicroRNA Sequences Within the Protein-Coding Regions of Global HIV-1 Genomes: Predictions of Novel Mechanisms for Viral Infection and Pathogenicity.
He is a licensed pilot and a stamp collector.
He runs triathlons
One of his lines in his songs 'you gotta keep em separated' comes from biology labs where petri dish samples had to be kept separated.

“I know this sounds funny to say, but I think viruses are cool. They’re cool because they’re so gnarly. They go in and they take over your cell, and they tell the machinery to stop making cellular things and start building viruses, so all the things that would normally be making your mitochondria, or your cell membrane, those parts now get taken over and turned into hundreds of viruses—little robots!—and when the virus has finally used up all the stuff in your cell, the last instruction is: Blow the cell up! And the viruses go out, and it’s just evil! It’s like Darth Vader stuff, right? I don’t mean to get a kick out of it, because it’s obviously bad for you, but there’s something fascinating about that."
“I guess it’s time management, I see it more like, what’s the word, chunking? Is that a Tony Robbins word? Where you focus on one thing as completely as you can for two days, and then the rest of it is nagging at your brain waiting to get done, so you have to shift your attentions. I think putting it in blocks of time definitely helps. Like, this is my day when I’m gonna do this.”