Happy birthday to the man, the myth, the mustache! Tom Selleck turned 81 on January 29, 2026, and he's still just as beloved as ever. Now his adoring fans are celebrating the star, whose decades-long career is bookended by his iconic role as Thomas Magnum in the '80s hit Magnum, P.I., and his turn as Police Commissioner Frank Reagan in the CBS mainstay Blue Bloods. We're keeping our fingers crossed for a cameo on the new spinoff Boston Blue.