White House hopefuls are movie-star hot on late-night talk shows since that first GOP debate clocked 24 million viewers. In today’s news, Hillary Clinton chose NBC’s The Tonight Show Starring Jimmy Fallon on which to make her first late-night appearance since announcing her White House run. She’s showing up on September 16 which, not coincidentally, is the same night of the second round of GOP debates, on CNN. Tonight Show‘s announcement comes in the wake of a report of a Clinton campaign reboot to showcase her humor and heart.

Clinton’s appearance also comes two nights before rival Bernie Sanders, who has been gaining on her in some polls, guests on CBS’ Late Show With Stephen Colbert.

Late-night candidate booking war was declared last week when Colbert’s show trumped Fallon’s, announcing it had booked presumed Dem candidate Joe Biden for Thursday – one night before GOP frontrunner Donald Trump is booked to appear on Tonight. Biden will make his inaugural visit to Colbert’s show, as viewers wonder if he will use the CBS platform to announce his candidacy. Since Biden met with Sen. Elizabeth Warren (D-Mass) on August 22, it’s been widely speculated/reported he’s is considering a 2016 presidential run.

And, of course, GOP White House hopeful Jeb Bush is Colbert’s guest when Colbert makes his debut tonight, taking over for David Letterman on Late Show.

It will be Clinton’s first visit to The Tonight Show Starring Jimmy Fallon. Today, she’s sitting down with David Muir for an interview that airs tonight on ABC World News Tonight –  her first sit-down during campaign with an evening news anchor.