Luigi is Mario's younger twin brother and one of Nintendo's most recognisable characters, voiced in the classic era by Charles Martinet with an excitable Italian lilt. This greeting comes from Super Mario Galaxy, the 2007 Wii platformer where Luigi appears at the Comet Observatory and pops up across the cosmos. The clip took off among Mario fans who share Luigi voice lines as reaction sounds, and it keeps resurfacing in galaxy montages, fan edits and cosplay clips because his warm, goofy delivery fits any triumphant or starry moment.