by Free Britney at . Comments

As Drew Barrymore and Will Kopelman married last weekend, her longtime ex Justin Long was quietly celebrating his birthday with a new girlfriend.

He's in "very new" relationship with actress Kate Mara.

The couple were seen getting cozy on Saturday in NYC's East Village. The American Horror Story actress held on to Long's arm as they went for a stroll.

A source tell Us, "She took him out for his birthday."

  • Kate Mara Photo
  • Justin Long Photo

Long turned 34 on Saturday, the same day Barrymore got married. Justin had dated Barrymore, who is expecting her first child, from 2007 to 2008.

The duo then reunited in 2009 and costarred in He's Just Not That Into You and Going the Distance, before calling it quits again, and for good, in 2010.

Mara, 29, is the older sister of The Girl With the Dragon Tattoo star, Rooney Mara. She and Justin have been together for about a month or so.

by Free Britney at . Comments

It's a clash of the stylish siblings from the 2012 Academy Awards red carpet.

If there was any Oscar nominee whom the world’s fashion aficionados were awaiting, and whom every Tweeter of the event had something to say, it was Rooney Mara.

The influence of The Girl With the Dragon Tattoo star - her bangs, her steely gaze, her porcelain skin in stark contrast to her dark hair - is the talk of every red carpet.

Her older sister, Kate, Mara (American Horror Story, 127 Hours) went a different route, mixing soft pastels and flirty silhouettes in a floral-bead emblazoned Elie Saab gown.

Which of the sisters looked betters? Vote in this latest THG Fashion Face-Off!

Fashion Face-Off!

Which sister looked better at the Oscars, Rooney or Kate Mara? Vote for your favorite style star in this latest THG Fashion Face-Off! View Poll »