'Mob Wives' Big Ang -- Drops Blonde Bombshell After Cancer Surgery (PHOTO)

Big Ang is out and about and flaunting new blonde locks ... just a few weeks after undergoing a lifesaving operation to remove a cancerous tumor from her neck.

The "Mob Wives" star was looking good Saturday outside Teak restaurant in Red Bank, NJ, and even stopped to pose with a fan. We're guessing the neckerchief is there to cover any surgery scars -- in the most stylish way possible.

Sources close to Ang tell us she lightened up before the surgery ... because she felt like she just needed a change after getting the cancer diagnosis.

Work it, Ang.