Niall Horan

After Jay Leno's second retirement from the program, Jimmy Fallon stepped in as his permanent replacement. After 42 years in Los Angeles the program was brought back to New York.

Seth Meyers, who is "Saturday Night Live's" longest serving anchor on the show's wildly popular "Weekend Update," takes over as host of NBC's "Late Night" — home to A-list celebrity guests, memorable comedy and the best in musical talent. As the Emmy Award-winning head writer for "SNL," Meyers has established a reputation for sharp wit and perfectly timed comedy, and has gained fame for his spot-on jokes and satire. Meyers takes his departure from "SNL" to his new post at "Late Night," as Jimmy Fallon moves to "The Tonight Show".

David Letterman uses mature humor to appeal to his audience in this weeknight series, which gets its music from a house band led by Paul Shaffer. Among the show's most-famous segments are the Top Ten List and Stupid Pet Tricks, the latter of which subsequently led to an additional recurring segment called Stupid Human Tricks.

Each week celebrity guests join Irish comedian Graham Norton to discuss what's being going on around the world that week. The guests poke fun and share their opinions on the main news stories. Graham is often joined by a band or artist to play the show out.

Kelly Clarkson presents the biggest newsmakers and names in film, television and music; as well as emerging new talent and everyday people who are beacons of hope in their communities.

A late-night live television sketch comedy and variety show created by Lorne Michaels. The show's comedy sketches, which parody contemporary culture and politics, are performed by a large and varying cast of repertory and newer cast members. Each episode is hosted by a celebrity guest, who usually delivers an opening monologue and performs in sketches with the cast, and features performances by a musical guest.

Talented entertainer and newly-minted EGOT Jennifer Hudson takes on the daytime talk show landscape.

Once Craig Ferguson retires, James Corden will be taking over The Late Late Show. The show is a late night talk show that interviews celebrities and has its own bits. And of course, it's all hosted by James Corden.

The show with hot questions and even hotter wings invites a famous guest over to eat and then interviews them while they're struggling through the heat.

The strongest vocalists from across the United states compete in a blockbusters vocal competition, the winner becomes “The Voice.” The show's innovative format features four stages of competition: the blind auditions, the battle rounds, the knockouts and, finally, the live performance shows.

Jimmy Kimmel Live! is an American late-night talk show, created and hosted by Jimmy Kimmel and broadcast on ABC.

Watch Carly, Sam, and Freddie, as they try to balance their everyday 8th grade lives with their newfound fame managing and starring in the most awesome show on the web.

The Ellen DeGeneres Show, often shortened to just Ellen, is an American television talk show hosted by comedian/actress Ellen DeGeneres.

El Hormiguero is a Spanish television program with a live audience focusing on comedy, science, and politics running since September 2006. It is hosted and produced by screenwriter Pablo Motos. The show aired on Spain's Cuatro channel from launch until June 2011 and is now broadcast on Antena 3. Recurring guests on the show include Luis Piedrahita, Raquel Martos, Marron & "The Man in Black", and puppet ants Trancas and Barrancas. It has proved a ratings success, and has expanded from a weekly 120-minute show to a daily 40-minute show in its third season, which began on September 17, 2007. The show won the Entertainment prize at the 2009 Rose d'Or ceremony.

A weekly talent competition where an array of performers – from singers and dancers, to comedians and novelty acts – vie for a $1 million cash prize.

An annual award ceremony presented by MTV to honor the best in the music video medium.

The Jonathan Ross Show is a British chat show presented by Jonathan Ross. It was first broadcast on ITV on 3 September 2011 and currently airs on Saturday evenings following the conclusion of Ross' BBC One chat show, Friday Night with Jonathan Ross, in July 2010.

The X Factor is a British television music competition to find new singing talent, contested by aspiring singers drawn from public auditions.

Two teams comprised of comedians, celebrities and sports stars compete against each other in a test of their sporting knowledge, taking place over three rounds.

An annual American music awards show. Unlike the Grammys, which are awarded on the basis of votes by members of the Recording Academy, the AMAs are determined by a poll of the public and music buyers.