Jonny Kim served as a Navy SEAL on over 100 combat missions. He earned a medical degree at Harvard. And earlier this week, Kim went on his first spaceflight to the ISS, floating 250 miles above Earth.

Later that day, he released “Old Town Road” under the name Lil Nas X. Within four months, “Old Town Road” was the No. 1 song on the Billboard Hot 100—and it stayed there for a record ...