Apple mysteriously shut down its Grand Central Terminal store in New York City today, and it turns out it was for an impromptu Alicia Keys concert to celebrate Apple's upcoming 50th anniversary. Apple quietly invited select YouTubers and members of the media (including MacRumors) to the store location, but kept the performer secret until Alicia Keys took the stage.

Apple announced today that it will spend the coming weeks celebrating its 50th anniversary. The company also published a letter from CEO Tim Cook in which he shares what the anniversary means to him. Apple's not known for looking back, as the announcement post acknowledges, but 50 years is a big deal and a good

Apple kicked off global, in-person 50th Anniversary celebrations with a surprise Alicia Keys concert at its iconic Grand Central store — and Tim Cook is embracing celebrating Apple's past.

Apple kicked off global, in-person 50th Anniversary celebrations with a surprise Alicia Keys concert at its iconic Grand Central store — and Tim Cook is embracing celebrating Apple's past.