Diane Lane Out and Unattached

2/28/2013 12:07 PM PST

Diane Lane -- Out and Unattached After Filing for Divorce

A week after news surfaced of the demise of her eight-year marriage to Josh Brolin, Diane Lane was spotted out for the first time ... newly single and ready to mingle.

The gorgeous "Unfaithful" star stepped out for a night on the town with her best celebrity girlfriends Laura Dern and Ted Danson's wife Mary Steenburgen.

Diane filed for divorce two weeks ago from Josh, citing irreconcilable differences.

The 48-year-old babe should have no problem getting back into the dating game.