James Corden becomes the fourth host of the Late Late Show on March 23, following in the footsteps of a Tom and two Craigs (Snyder, Kilborn and Ferguson, respectively). He’s a relative unknown to U.S. audiences, which may have some CBS network execs wringing their hands with concern (if you believe what the tabloids say, anyway).

The same can be said of Conan O’Brien and Jimmy Fallon when they became talk show hosts for the first time.

Even Ferguson was met with some trepidation when he took over for Kilborn. Today some would say Ferguson was one of the most inventive, format-busting talk show hosts there ever was.

Talk show fans are eager to see how the new host levels up. Here’s everything you need to know about the new Late Late Show.

1. Corden knows he’s taking a huge chance

Recent entertainment reports suggest that Corden is involved in “secret” dress rehearsals with audiences that aren’t catching on to the show he’s delivering. Corden gets it. He has said in more than one interview that he’s taking the biggest gamble of his career. “What are the chances of a chubby 36 year-old from a tiny town like High Wycombe who has predominantly written narrative sitcoms and acted in plays and films being able to talk to American audiences and have them come around to that?" he tells The Hollywood Reporter. He is humbled by his competition and jealous at the ease with which Fallon hosts The Tonight Show. Even still, he adds that “Deep down, I fancy our chances.”

2. Corden is no stranger to the host role

Corden has extensive television experience as an actor and writer. But what about when it comes to hosting a talk show? No worries. He’s been there, done that. Corden was the co-host of Big Brother’s Big Mouth, an aftershow talk show similar to The Talking Dead.  He was also the host of comedy/sports game show A League of Their Own in the U.K. and co-presented the BRIT Awards in 2009, the first of three award hosting gigs.

3. Expect some twists within a familiar format

The Late Late Show’s executive producers come from solid stock. Rob Crabbe is a former Tonight Show supervising producer and Ben Winston produced X Factor. The two know how to entertain an audience. That said, both understand that the late night talk show is a tried and true format. Beyond a new set and theme song, expect an opening monologue, celebrity interviews and some comedy in-between. Still Corden and his team feel like they have the ability to be loose within the format, especially in the 12:30 a.m. timeslot. Corden’s hope is audiences tune in because they know they may get a totally different show than the night before.

4. One twist? All the guests will come out together

With a nod to British talk show formats, Corden will forgo the “one celebrity at a time” format and invite guests out together. Show creators hope this will open up the show’s party atmosphere, providing more interaction and discussion between the host and guests. The hope is the format feels more organic and less formal.

5. It’s one of the “youngest” shows in late night

At 36, Corden is the youngest late night talk show host on any of the major networks and most of cable. The show also employs two of the youngest showrunners among its talk show competition. Corden hopes to bring that vibe to the show and to the way the show interacts with its audience in social media. But his overall goal? Make a great show.