Jessica Biel is all about her J-O-B in the aftermath of her husband Justin Timberlake‘s DWI arrest.

The actress was spotted filming her new show, “The Better Sister,” Tuesday in NYC … where she appeared unfazed by her hubby’s recent legal drama in Sag Harbor, which is a couple hours east of where she’s shooting in the Big Apple.

Jessica stunned in her costume for the Prime Video series … wearing a body-hugging black and tan dress while sporting a chic bob. The actress — who has been married to the *NSYNC alum since 2012 — smiled wide while waiting for her moment in front of the camera.

She was later photographed with a serious expression on her face, but she could’ve just been focusing on a scene … it’s a crime thriller, after all.

Though, we wouldn’t blame JB if she had other things on her mind.

As we previously reported … JT was pulled over in Sag Harbor Monday night after blowing through a stop sign and swerving on the road.

According to our sources … Justin was enjoying a night out with friends at the American Hotel before getting behind the wheel of his gray BMW UT.

He was stopped by police a little over a mile from the hotel … where officers performed a field sobriety test on him.

While JT refused to take a breathalyzer test, cops say the singer had bloodshot/glassy eyes, a strong odor of alcohol on his breath, and slowed speech at the time. They slapped cuffs on Justin and took him to jail … where he spent the night.

He was arraigned and released without bail Tuesday morning … looking downcast as he exited the courthouse with his attorney.

So far, Jessica and Justin have remained tight-lipped about his arrest … though he’s expected in court on July 26.