The Fall Out Boy bassist – and new dad! – gives the gift of music at an impromptu sing-along in N.Y.C. Plus: Tom Cruise, Nicole & Joel and more

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FATHER'S DAY

Liev Schreiber is on daddy duty – tending to his son Alexander, 16 months, while out Monday in New York. On Saturday, the actor and Naomi Watts welcomed their second son together, making Alexander a big brother.