Stray Kids member Seungmin is way more than a K-pop superstar -- the vocalist proved he's got some serious skills on the mound as well ... throwing a perfect strike during the ceremonial first pitch at the MLB Seoul Series game!!
1/8 of the popular boy group was present for the Los Angeles Dodgers' exhibition game against Team Korea at Gocheok SkyDome on Monday ... but he wasn't just there to watch -- he also got to show off his arm prior to the start of the contest.
As it turns out, Seungmin's first love was baseball .