Great news for The Hills and The City fans as MTV has now renewed The Hills for season six and The City for season three.

According to Entertainment Weekly, the new seasons of both shows will air sometime in 2010.  Production on The City’s 3rd season will begin this week while The Hills’ 6th season will go into production in early January.

The finales of both shows aired this week, and EW was able to chat The series’ respective stars, Kristin Cavallari and Whitney Port, about their decisions to continue with the shows. “I’ve had the best time—I really have,” says Kristin . “I feel like I have the best job! Why not?!” Kristin also says she’s no longer worried about being pegged as a reality TV star. “It’s like I’m in it now,” she admits. “I might as well keep going!”

The upcoming season of The City will focus much more on Whitney’s attempt to succeed with her own fashion line. “That’s my reality,” says Whitney. “It’s where this collection is going to be sold, who we’re going to put it on, what magazines it’s going to be on.” We’ll also get a peak into Port’s social life and friendships. “Just Roxy and I exploring the city together a little bit more and learning who we are.”

Audrina Patridge will not be returning to the Hills’ new season as she will now begin filming her own upcoming solo reality show for MTV.