Length of relationship: A little over a month
Latest rumors: She's been hanging backstage at "Saturday Night Live" and the two have been seen holding hands and having romantic dinners.
Chances their relationship will hit the one-year milestone: Low. Very low. Jason seems to enjoy the single life -- he was once the rumored father of January Jones' baby, with whom he had a brief fling -- and Olivia is basically Hollywood's current maneater. I'm not judging -- I'm jealous. Following her divorce from some prince named Tao, Olivia has been linked to everyone from Justin Timberlake to Ryan Gosling to everyone else in my damn spank bank. Unless these two have somethin' special, I give it another month.