Let's make this birthday one to remember.

46 years old (Born on October 28, 1978)

Happy Birthday, Justin Guarini! From your unforgettable debut on American Idol to becoming everyone's favorite runner-up with hair that defied gravity—your charm and talent have always been pitch-perfect. Who knew back then you'd become the iconic Lil' Sweet, serenading us into soda-induced happiness?

Here's wishing you another year filled with catchy jingles, hilarious commercials, and continued success in music and entertainment. May your birthday be sweeter than a Diet Dr Pepper commercial—and may this next chapter bring even more memorable moments (and hairstyles) for fans everywhere to enjoy. Keep rocking those high notes; you're truly timeless!