The Hills Season 5 premieres tonight: Lauren Conrad, Heidi Montag, Spencer Pratt return

Tonight, reality TV starlet Lauren Conrad returns for what will reportedly be her final season on "The Hills." The show airs 10 p.m. on MTV.

Last season ended with hints of a reconciliation between Conrad and her on-air enemy, Heidi Montag. Trailers for the show's fifth season show Montag crashing Conrad's birthday party and asking to be friends again.

"The Hills," known for its high drama and glossy Los Angeles footage, debuted in 2006. In interviews, Conrad has said this will be her last season.

But fans shouldn't worry. "The Hills" has already spawned one spinoff, Whitney Port's "The City," and "Hills" cast member Audrina Patridge is set to get her own reality TV show.

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