The Hills star Lauren Conrad showed off her spring line at L.A. Fashion Week on Tuesday night.

Lauren who studies part time at the Fashion Institute of Design and Merchandising in Los Angeles, debuted her clothes line in front of her closest friends and family.

The front row had the likes of Whitney Port and Audrina Patridge, Lauren's 'The Hills' co stars - but no sign of Heidi!

A few Laguna locals turned up too including Stephen Colletti, Lo Bosworth and Dieter Schmitz.

However the most surprising guest of the night was Lauren's former Laguna nemesis Kristin Cavallari, who joined 'The Hills' star Brody Jenner on the opposite side of the catwalk.

Luckily the two ladies had patched things up...

As season 4 of The Hills is due to start filming any day, and rumours of a Cavallari debut are high!

So what did the anxious star think of her first big show?

"It's a great time because I get to take all of my months and months of work and display it for everyone and celebrate what I did," said Lauren.

You can catch all the latest gossip from Lauren and The Hills right here!

And remember keep checking back for updates on Series 4...