09/14/2014 10:04 EDT | Updated 09/15/2014 07:59 EDT

Happy 30th Birthday Prince Harry! Your Most Important Moments In Life

Prince Harry turns 30 years old on Sept. 15, 2014, and the ginger-haired royal (who will be bumped to fifth in line to the throne with the arrival of his new niece or nephew next year) is probably quite ready to celebrate.

After all, the ever-smiling Harry (who is known as Captain Wales in his military role) just finished the four-day Invictus Games, an international competition he created for injured servicemen and women that ran from Sept. 10 to 14, 2014.

Besides that, he's always up for a party. His notorious past has included moments like dressing up as a Nazi for a costume party (he issued an apology shortly afterwards) and getting right down to his birthday suit in Vegas in 2012.

But in the past little while, Harry has become a decided grown-up, even calling himself "old" at the opening of the Invictus Games and seeming to take his responsibilities and opportunities more seriously. He may even be settling down in love, if reports about his new love interest, Camilla Thurlow, are to be believed.

So in honour of this big birthday, we wanted to celebrate the many ways in which Harry has charmed us and made us giggle, and yes, even impressed us, throughout the past 30 years. Happy birthday Spike!

Photo gallery Prince Harry's Most Important Moments See Gallery