Let's make this birthday one to remember.

49 years old (Born on June 10, 1975)

Happy Birthday, Altiyan! May your day be filled with rocking celebrations and spontaneous guitar solos. Winning the second season of "The X Factor Australia" was only the start—since then, you've kept us humming along to impressive tunes like "Somewhere in the World," which undoubtedly still echoes somewhere out there (most likely wherever cake is being served today).

As you celebrate another spin around life's greatest stage, we hope you're showered with as much applause today as during your biggest performances. Keep inspiring us all; remember age may increase every year—but a good rockstar anthem never gets old!