Birthday Boy Joe Jonas Then and Now! See How Much He’s Changed (PHOTOS)

Today, August 15, singer Joe Jonas turns 23 years old. So in honor of the swoon-worthy JoBro’s big day, we thought we’d take a trip down memory lane.

Joseph Adam Jonas first burst onto the music scene back in 2006 with the release of the very first Jonas Brothers album. He, older brother Kevin (now 24), and younger brother Nick (now 19) then went on to release three more albums, all of which were huge successes on the Billboard charts.

As Joe has grown up in Hollywood — and expanded his career to include not just music, but scripted television and reality TV hosting as well — we’ve watched his physical appearance change right before our eyes.

Back in 2006 (left), a then-16-year-old Joe made one of his first TV appearances on MTV’s Total Request Live in New York City. A year or so later, Joe grew out his hair into that long, perfectly styled mane we became so familiar with during his Disney channel days. At right, Joe sported a short and slightly curly ’do at the Teen Choice Awards just last month.

The middle Jonas Brother has grown up quite nicely, don’t you think?

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