Back in the 90s Jonathan Taylor Thomas (A.K.A. JTT) was plastered on every cover of Teen Beat, Tiger Beat and Bop out there ... and then completely vanished.

Well, get ready to feel old, because the former teen idol turns 30 today -- and after almost 10 years since his last red carpet appearance, he's finally been spotted by a camera!

JTT reunited with his "Home Improvement" castmates last month for a photoshoot for an upcoming issue of Entertainment Weekly -- and TV mom Patricia Richardson shared some behind-the-scenes pics.

Thomas can been alongside Richardson, Tim Allen, Zachery Ty Bryan, Taran Noah Smith, Debbe Dunning and Richard Karn.

Check out another recent shot of JTT and the Taylor boys, plus take a look back at his teen idol heyday above! Thanks to DListed for first tracking down that new photo.

Happy Birthday!

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