Rosner lives across the street from Lincoln Center and goes to Breads Bakery to hang out with friends every single day.
On Saturday, her friends threw her a party to celebrate her special day. Nearly 100 people showed up for the party.
As they sang "Happy Birthday," Rosner said she had to close her eyes and absorb the moment to take it all in.
She says she is also looking forward to singing and dancing again with no mask on.
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