patridge041311_01_X17-1460.jpgAudrina Patridge red carpet dress legs bongo jeans the hills

Who knew Audrina Patridge and Rob Kardashian were so tight? We know they're probably just friends, but what a cute looking couple!

The former Hills star was all smiles at The Redbury Hotel while celebrating her latest campaign for Bongo Jeans. Also there to support the stunning brunette ... the Patridge family. We say Patridge, not Partridge. Huge difference!

In addition to her Bongo campaign, Ms. Patridge was promoting her upcoming VH1 reality show simply titled Audrina. The show will focus on her family ... and the drama between them. Sounds juicy!

Find out when it premieres ... after the jump.