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From reality TV stars to podcasters and former teen moms.

A security guard tried to warn him...

Long live 'Tiger Beat' and 'Bop' magazine.

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From Gwen Stefani to Miley Cyrus and John Mayer, these pop stars have written breakup songs about other famous people.

From Disney Channel stars to 'Spy Kids' — these former kid actors are entering their 30s this year!

Frankie gained over 200,000 followers in a single day.

He's been "living and breathing" 'The Voice' since Season 18.

Flying is not a favorite for these celebs.

The music video features the brothers' wives.

While some stars were able to recover like a pro, others needed a little help from the audience.

See how your favorite celebrities have transformed since they first made it big.