Emily Ratajkowski is ever the excited mother as she smiles at her newborn son Sylvester in NYC

Lady Gaga exudes glamour in a dramatic puff sleeved blouse while exiting her NYC hotel

Lady Gaga slips into a cozy sweater... after wowing in white Giambattista Valli gown in NYC

Rose Leslie looks radiant as she takes her newborn son for a stroll amid a break from filming in NYC