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Nick Jonas turns 23 today!

That's right, today marks Jonas' 23rd birthday. In celebration of his big day, we wanted to look back at Jonas' evolution from cute boy-bander to hunky heartthrob.

We still remember him back in the early days of the Jonas Brothers rocking out with his siblings. Since then, he's grown from an adorable JoBro to a handsome leading man. The sexy singer now has a successful solo career and he's on the TV show Kingdom looking all kinds of hot.

So, in honor of his birthday, let's take a look back at his evolution.

Watch the E! News clip to see the birthday boy over the years!