Jennifer Lopez Wears a Luxe Wrap Coat and Green Gown on Night Out with Ben Affleck

Jennifer Lopez and Ben Affleck were among the many celebrities that attended Halloween parties this weekend.

. Instead of matching clothes, the married pair matched in gorgeous nighttime appearances.

The multi-hyphenate and filmmaker were spotted arriving at Australian model and actress Pia Miller's 40th birthday event in Los Angeles last night. 

 To honor their longstanding friend, the "Waiting for Tonight" singer wore a gorgeous satin gown in chartreuse green fabric with an asymmetrical skirt

and a flouncy scalloped hem. The ankle-skimming hem of Lopez's dress peeked out from under her clean white coat, which was knotted at the waist with a matching white belt.

The actress completed the ensemble with strappy heeled sandals in a matching shade of green and a structured gold clutch. Her only visible jewelry was a collection of rings, 

one of which was her green diamond engagement ring. Her hair was styled in a wavy blowout, and she capped off her bronzed makeup with a nude lip.

Meanwhile, the director of the Air Force looked sharp in a classic black suit, a white button-down, and black dress shoes. He extended his arm to his wife, who gripped his arm as they walked into the venue.

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