Singer Mariah Carey will reportedly file for divorce from Nick Cannon "very soon", and it could be as early as this weekend.

Carey, 44, who married the `America's Got Talent` host in 2008 after just six weeks of dating, is reportedly keen to begin legal proceedings as soon as possible, reports nydailynews.com.

Cannon announced in August that he and Carey had been living separately for a few months, but he insisted that their main focus was, and always will be, on their three-year-old twins Moroccan and Monroe.

According to reports, infidelity may have caused the breakdown of their marriage shortly after Cannon announced they'd parted ways, but he was quick to shoot down the cheating allegations just days later.

However, Carey seemed to subtly break her silence on the matter when she performed her `Elusive Chanteuse World Tour` in Tokyo, Japan.

While performing Billie Holiday's classic `Don't explain`, Carey changed the lyrics to the angry line of `I know you cheated, motherf****r", which left fans wondering if it was a sly reference to Cannon.