Greg Gutfeld reminisced with Jimmy Fallon about their supportive mothers during his "Tonight Show" appearance, sharing stories about his late mother Jackie.

Jimmy Fallon hosted Fox News personality Greg Gutfeld Thursday night on NBC’s The Tonight Show Starring Jimmy Fallon, in a rare crossover between the networks. Gutfeld promoted his Fox Nation game show,

Greg Gutfeld made his broadcast late-night debut on “The Tonight Show Starring Jimmy Fallon” Thursday evening, marking a rare network crossover with the Fox News host visiting NBC’s 30 Rock. A conservative media personality is a rare booking for “The Tonight Show” and the 10-minute segment between Gutfeld and Fallon largely steered clear of politics.