The former leading lady is set to return for the second season of The Hills: New Beginnings later this year.
Cavallari took over the lead role on the series when Lauren Conrad exited during The Hills Season 5 and was with the series until it concluded in 2010.
She will reunite with her former co-stars, including Audrina Patridge, Whitney Port, Heidi Montag, and former love interest Brody Jenner.
Cavallari broke the news to Entertainment Tonight at her Uncommon James SS20 launch party at Gracias Madre in West Hollywood on Thursday, March 5.
“Yeah, I’m going to make an appearance on The Hills,” Cavallari shared with Et correspondent Katie Krause.
“I don’t know what I can and can’t say. Clearly, I just say always so much, but people expect that from me.”
“I’m excited! I’m actually very excited,” she continued. “I