Prince Harry may have finally grown up! Princess Diana's son with Prince Charles turns 30-years old on Monday and is planning on celebrating the milestone in a low-key way. Harry was supposed to be having a huge bash at Kensington Palace but he insisted on canceling it late last week after his official party planner—none other than Kate Middletonfell ill. The Duchess of Cambridge is currently battling severe morning sickness and Harry reportedly thought it was insensitive to continue with his original party plans.

Over the years Prince Harry has often found himself in hot water with the royals and Queen Elizabeth has had a special way of getting him back in line. Not long after his naked fun in Las Vegas became tabloid fodder the prince was shuffled off to Afghanistan to serve in the military for more than a year. He did seem to return home to London a slightly changed man and this past year even Harry's taste in women seems to have changed a bit. He is currently linked to Camilla Thurlow, a Kate Middleton look-a-like that works for a charity organization.

Prince Harry has said that he will commemorate his 30th birthday with a quiet drink with a good friend. He will also be inheriting $15 million from his late mother, Princess Diana's estate. As far as all of those who were originally invited to Harry's birthday bash, he has promised that it will be rescheduled at a later date. Has Princess Diana's youngest son finally grown up and out of his rebellious phase or is he just much smarter about covering his tracks these days? Tell us your thoughts in the comments below!

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