Ashlee Simpson Beverly Hills Vincent Piazza Bronx Mogwi
Ashlee Simpson Beverly Hills Vincent Piazza Bronx Mogwi

With that hat and those sunglasses, Ashlee's new man Vincent Piazza could almost pass for ex hubby, Pete Wentz!

The happy couple enjoyed a fun-filled day of shopping and lunching in Beverly Hills on Saturday afternoon with Simpson's 3-year-old son Bronx Mogwi, after spending last week at the hospital with big sis Jessica Simpson for the birth of her baby girl.

After Jess welcomed daughter Maxwell Drew last Tuesday, the proud aunt gushed to People mag, "Bronx and I are in love with Maxwell already!" Ashlee told People magazine about how excited she and her son, Bronx, are. "Jessica has wanted to be a mom since we were little girls and I couldn't be more excited for her and Eric!"