Watch Tyrion and Jaime Lannister get musical with some help from Coldplay

As part of the upcoming Red Nose Day charity event, Martin teamed up with various Game of Thrones actors to create a set of musical numbers that offer a funny — and in some cases, pretty darn catchy — spin on the events of the popular television series inspired by George R.R. Martin’s “A Song of Ice and Fire” novels.

A clip featuring Peter Dinklage (who plays Tyrion Lannister in the series) and another performed by Nikolaj Coster-Waldau (Jaime Lannister) have been released online to tease the event (see above and embedded below), as well as a third video that provides a behind-the-scenes look at Martin’s collaboration with the cast of the show. (And judging by the scenes featured in the clip, more than a few characters who have exited the series for one reason or another may make a return appearance for the event.)

Scheduled to air Thursday, May 21, at 8pm ET on NBC, the three-hour Red Nose Day event will feature comedic skits, videos produced by the team at Funny Or Die, musical performances, and a series of short films intended to bring attention to the plights of those in need due to poverty in the U.S. and abroad. The charity campaign will benefit 12 international charity organizations that benefit children and young people.

An enormously successful, annual campaign that began in the U.K., Red Nose Day has raised more than $1 billion over the last 30 years. This will be the first time the annual event will be hosted by the U.S.

Along with Dinklage and Coster-Waldau, the other Game of Thrones cast members expected to appear in musical skits are Kit Harington, Emilia Clarke, Iwan Rheon, Thomas Brodie-Sangster, Mark Addy, John Bradley, Rose Leslie, Alfie Allen, and Charlotte Hope.

The tidal wave of other celebrities officially slated to appear in NBC’s Red Nose Day broadcast include Julia Roberts, Jennifer Aniston, Julianne Moore, Jodie Foster, Reese Witherspoon, Neil Patrick Harris, Sienna Miller, Paul Rudd, Olivia Wilde, Eddie Redmayne, Benedict Cumberbatch, Sir Ian McKellen, Orlando Bloom, Leslie Mann, January Jones, Simon Cowell, Naomi Campbell, Anna Camp, Jeanne Tripplehorn, Yvette Nicole Brown, Retta, Natalie Morales, Danny Pudi, Rob Huebel, Will Ferrell, Jack Black, John Krasinski, Emily Blunt, Michelle Rodriguez, Gwyneth Paltrow, Sam Smith, John Legend, Adam Levine, Blake Shelton, Christina Aguilera, Pharrell Williams, Matt Lauer, Carson Daly, Bill and Melinda Gates, Nick Offerman, Elizabeth Banks, Chris Pine, Jeff Goldblum, Billy Eichner, Martin Short, Laura Linney, Anna Kendrick, Sean “P. Diddy” Combs, John Michael Higgins, and Stephen Merchant.

You can get more information about Red Nose Day at the event’s website, RedNoseDayUSA.com.