Michelle Williams splits from artist beau - report

Actress Michelle Williams has reportedly split from her boyfriend, artist Dustin Yellin.

The Brokeback Mountain star was linked to Yellin last spring (13) following her break-up from Jason Segel in February (13), but after less than a year of dating, the couple is said to have called it a day, a source tells Usmagazine.com.

The pair first sparked dating rumours after last year's (13) Costume Institute Gala when they were spotted leaving an afterparty hand-in-hand. However, Williams walked the red carpet solo at last week's (begs05May14) bash at the Metropolitan Museum of Art in New York.