[citation needed] In March 2006, she relocated to Los Angeles with her husband, Australian businessman David Gyngell.

McKinnon is most famous for her interrogation of Corey Worthington in 2008 after he hosted a house party that led to gatecrashing, widespread chaos, and tens of thousands of dollars in property damage; the party and its aftermath, including the viral interview with McKinnon, have been widely speculated to have inspired the 2012 movie Project X, although this was never confirmed or denied by any of the writers or producers.

[5][6][7][8] In January 2009, it was announced that McKinnon will co-host Weekend Today alongside Cameron Williams, with Amber Sherlock and Michael Slater presenting the news and sport.

[citation needed] In 2012, McKinnon co-hosted Nine's award-winning coverage of the London Olympic Games and conducted the first live interview with Princes William and Harry.

[citation needed] In 2014, McKinnon resigned from Weekend Today to spend time with her family and focus on other projects on the Nine Network, she was replaced by Deborah Knight.

[10] In 2022, McKinnon was announced as one of the new hosts for the sixth season of Australian Ninja Warrior alongside Jim Courier and sideline presenters Will & Woody.