"Happy birthday to the oldest and wisest Jonas brother, Kevin! Can you believe it's been 38 trips around the sun for you? You're officially in your late thirties, but we all know age is just a number. Here's to many more years of music, laughter, and swoon-worthy moments. Have a fantastic day filled with love, family, and cake (because let's be real, no birthday is complete without cake). Cheers to another year of being a total rockstar! 🎉🎸🎂 #KevinJonas #BirthdayBoy #38andFierce"