Jack Antonoff

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Swift secretly filmed a new, intimate concert movie.

Lena Dunham opens up in a new profile for 'New York' about the Antonoff breakup, her hysterectomy, and splitting with 'Girls' co-writer Jenni Konner.

The singer gets deep (and silly) with Mark Ronson, Diane Warren and more for a roundtable of Oscar-buzzing songwriters.

They dated *who*?