On Thursday the star teased about her latest exciting project before waiting until Friday to reveal she had a presenting spot at this year’s Academy Awards for E! television.

She tweeted: ‘Back to LA for something exciting I'm doing this weekend..will be able to tell u shortly what it is ;)

The 25-year-old emerged from her luxury apartment complex in West Hollywood bright and early this michael kors outlet morning for the gig of a lifetime as far as her on-screen career is concerned.

She looked delightfully elegant in a grey bandeau floor-length gown and nude Christian Louboutin heels.

The Hills star kept her neckline clear and demanded all eyes on her burgeoning baby bump as she donned the design which feature gathered chiffon around the waist area.

The star was happy to show off the progression of her pregnancy as she headed into a waiting limousine and even raved about her increasing size on Twitter this morning.

She boasted: ‘My stomach literally grew double overnight!! This belly came out of Michael Kors Watches nowhere!’

With her hair done in a gorgeous up-do by friend of Miley Cyrus, Marcus Francis, and her flawless makeup achieved with the help of Priscillo Ono, Kristin looked beautiful.

Only this week the reality TV star - who first found fame on the MTV’s Laguna Beach – landed herself a spot at the most prestigious awards show of the year.

 ‘Very excited to announce that I'll be helping host the pre-show for the oscars on E! this sunday!!’

The fiancée of Chicago Bears star Jay Cutler and 2011 Dancing With The Stars contestant will present for Michael Kors Outlet, 2012 Michael Kors Outlet watches & handbags around an hour at the beginning of the red carpet run-up.

Kristin Cavallari was the first star to step out in her Oscars dress today.