Katie Holmes by Kevin Mazur/WireImage.com
A spokesperson for Katie Holmes tells Us that despite recent puffy-bloused photos and typical tabloid "speculation," Tom Cruise's missus "is not pregnant".... Virtually everybody from Lindsay Lohan's camp, Papa Michael included, is coming forth to rebuff a rumor that the recently rehabbed starlet is betrothed to snowboarder Riley Giles. (Too bad - he sounds like such a catch!).... Grey's Anatomy grump Sandra Oh's divorce from filmmaker hubby Alexander Payne was finalized on Thursday, says TV's Extra.