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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'PRESENT' TENSE

Also strutting her stuff at the D&G store opening: redhead Rumer Willis, who sported a stylish accessory – a tattoo on her torso with the proactive message "be present" – along with her nautical-print halter dress.