Jessica Simpson & Katharine McPhee: Winter TCA Party!

Fashion Star mentors Jessica Simpson and Nicole Richie arrive at NBC Universal’s 2012 Winter TCA Tour All-Star Party on Friday (January 6) in Pasadena, Calif.

Earlier in the day, the two, along with designer John Varvatos and host Elle MacPherson, promoted their new reality competition series during one of the tour’s panels.

Also hitting the All-Star Party: The Voice‘s Adam Levine (with his model girlfriend Anne V), Cee Lo Green, and Blake Shelton; Smash‘s Katharine McPhee and Debra Messing; Parks and Recreation co-stars Rashida Jones and Amy Poehler (whose husband Will Arnett also attended); and White Collar‘s Matt Bomer and Tim DeKay!

FYI: Jessica is wearing a Dolce&Gabbana dress with Christian Louboutin heels and Amrapali jewelry. Katharine wore a Sportmax dress and Charlotte Lu jewelry, while Nicole donned Antonio Berardi.

25 pictures inside of stars at NBC Universal’s Winter TCA party…