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When a teen popstar has a edgy image, but as soon as they turn 25 they act like a teenager. Opposite of Disney Star Syndrome.
Avril Lavigne at 17:
Why you gotta go and make things so complicated.

Avril Lavigne at 30:
Kawaii Hello Kitty!

Taylor Swift
At 18:
You were the best thing, that's ever been mine.

Taylor at 25:

I've got nothing in my brain!

Sara: Damn what happened to Taylor Swift
Mary: Avril Lavigne syndrome has hit her hard.
by ilikecupcakes March 15, 2015
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