(Cover) - EN Showbiz - Ashton Kutcher has been spotted "catching up" with his former That 70s Show cast mates on a night out.

The Hollywood actor was hosting a party for trendy eyewear brand Warby Parker in Los Angeles on Tuesday night.

Ashton was joined by a host of stars to celebrate the accessories line pop-up shop at boutique Confederacy.

The hunky star attended the party solo, and later tweeted a picture of himself enjoying the evening with Wilmer Valderrama and Danny Masterson.

Danny took over DJing duties while his friends mingled by the booth.

"Ashton was just catching up with the guys and mingling. He was just hanging out," a source told People.

According to the New York Post, Wilmer was "spotted trying on frames" along with a host of stars including Shenae Grimes and Emmy Rossum.

An insider said Ashton "was in really good spirits".

The night out comes a little over a month after Ashton reportedly cheated on his wife actress Demi Moore.

The pair are rumoured to be on the brink of divorce following the alleged extramarital affair. (C) Cover Media