Fan-girling Mania: Celebrities do It Too!

Seeing celebrities freak out over other celebrities has got to be one of the coolest things. These celebs aren't afraid to go full-out fangirl mode when they meet their idols!

1. Meghan Trainor

(Your reaction) Thank you!

After meeting and performing with Hilary Duff at the iHeartRadio Festival, Meghan took to instagram to let everyone know just how excited she was about it. She captioned the photo, "K my life is complete. I met @hilaryduff and we sang my song #allboutthatbass."

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