Ashton Kutcher still wearing his wedding ring amid marriage storm

Ashton Kutcher is letting his jewelry speak for him amid reports he and his wife Demi Moore are facing marriage woes - he stepped out on Thursday (29Sep11) wearing his wedding ring.

The couple has been dogged by infidelity rumors and stories suggesting its union is under threat ever since Kutcher and Moore spent their sixth wedding anniversary apart last weekend (24Sep11).

A series of cryptic tweets sent by Moore, who refused to talk about her husband on the red carpet at a premiere in New York earlier this week (26Sep11), only served the fuel the speculation. She was also a no-show at a film premiere in Hollywood on Tuesday (27Sep11).

But Kutcher fired back with tweets of his own on Thursday (29Sep11), directing fans to Public Enemy's Don't Believe The Hype on his Spotify.com playlist and then writing, "When you ASSUME to know that which you know nothing of you make an ASS out of U and ME."

And he also gave fans a visual sign his marriage is still intact during a visit to a Los Angeles motorbike shop - he was photographed leaving the store with two new bike helmets and he was wearing his wedding ring.