The Sax Guy is Tim Cappello, the shirtless, oiled-up saxophonist performing I Still Believe in the 1987 film The Lost Boys. His intense beach concert scene became a cult favorite, and clips of his gyrating sax solo spread widely as a reaction meme in the 2010s. People share it to mock over-the-top 80s cool and to celebrate earnest showmanship. A decade later it still works because the performance is so committed, making it perfect shorthand for dramatic, cheesy confidence online.