The 'SNL' star came out to lend his support from the gallery amid Thursday's hearing.
Rob Kardashian takes the stand in Blac Chyna’s ongoing defamation trial against the Kardashian family.
Kris Jenner’s boyfriend, Corey Gamble, takes the stand in Blac Chyna’s defamation case against the Kardashian family.
Chyna's ex testified about their tumultuous relationship in court on Wednesday.
Kim Kardashian also took the stand on Tuesday.
Seacrest served as executive producer on 'Keeping Up With the Kardashians.'
Her testimony came one day after Kylie Jenner took the witness stand in the civil trial.
The 24-year-old makeup mogul took the stand in Chyna's ongoing $100 million defamation lawsuit on Monday.
In Blac Chyna's defamation lawsuit, Kris Jenner testifies that her daughter, Kylie, allegedly received death threats from Chyna.
A source tells ET that Rob Kardashian’s daughter, Dream, is his ‘main priority’ amid the trial with his ex, Blac Chyna.
It's the second straight day Jenner took the witness stand in Chyna's lawsuit against Rob's family.
Chyna's lawsuit against the Kardashians and Jenners enters its fifth day.
The Kardashian-Jenner matriarch was questioned on Thursday during the high-profile defamation suit.
The 33-year-old takes the witness stand for the third day in a row.