Cormac's love of music for Television started at a young age. Composer's like Mike Post, Ian Freebairn-Smith, Randy Edleman and Thomas Chase were highly influential: Their music was fun, exciting and melodic.

Cormac has had the unique experience of writing music for the television show, It's Always Sunny in Philadelphia, since 2008 where he gets to do a wide variety of cues: from Blockbuster Film action scores like Michael Kamen to delightful little melodies like Marvin Hamlisch as well as Musical Theater. Cormac has written music and lyrics for Nightman Cometh, Franks Little Beauties and Dee Reynolds, Shaping America's Youth, Old Lady House: A Situation Comedy to name a few.

Behind the Scenes Featurettes - It's Always Sunny in Philadelphia

A BTS of the Season 12 premiere of It's Always Sunny in Philadelphia featuring original scratch tracks and clips of studio recording with Music Producer Cormac Bluestone and the cast.

Meet the man behind some of Sunny's most memorable musical moments! Brand new Sunny every Thursday night at 10, only on FX! For more Always Sunny news and webisodes, visit:

The Cool Kids

20th Century Fox Television, FOX

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I serve as the composer for the hit Television Show, The Cool Kids on Fox. I compose the score as well as the show’s Theme Song.

The show premiered Friday, September 28, 2018 at 8:30pm EST to favorable reviews. The show follows a “rough around the edges” group of friends living in a retirement community in Phoenix, AZ who have no problems breaking rules and having fun.

The Cool Kids stars David Alan Grier, Vicki Lawrence, Martin Mull and Leslie Jordan. It also features some incredible supporting actors such as Jamie Farr, Julia Duffy and Charles Shaughnessy.

Overthinking with Kat & June

AwesomenessTV, YouTube Red


I served as the composer for the Television Show, Overthinking with Kat & June. I composed score as well as the theme for the show.

The show premiered December 18, 2018 to excellent reviews (below). The show is described as “the birth of a strange but beautiful female friendship, the hopes, dreams and fears — but mostly fears — of the duo are heard out loud.”

It stars Tenea Intriago and Alexia Dox as Kat and June, with Justin Kirk, Sasheer Zamata and Constance Marie.

An occasionally surreal blend of laugh-out-loud comedy and absolute cringe. From Kat and June’s frequent fantasizing about their older landlord David to the former’s attempts to prepare the latter for a first date with the help of the twins Tessa and Molly, Overthinking can sometimes emphasize the “over” in its title. The thing is, it works so beautifully for this show and the kind of comedy it’s trying to accomplish.
— Andrew Husband, Metro US

Stream it. Absolutely stream it. Overthinking with Kat & June is not only a fresh take on the awkwardness of adult friendship but it’s also a ton of fun... Overthinking with Kat & June is an absurdly funny comedy not to be missed.
— Josh Sorokach, Decider

It's Always Sunny in Philadelphia

3 Arts Entertainment, FX Networks

Season 12: "Old Lady House: A Situation Comedy"

I wrote and produced the music for the theme song for this episode in an episode. They used it in the promos as well (featured).

Charlie thinks Mac's mom is holding his mom hostage so the gang installs spy cameras in their house to monitor what's going on. What they end up discovering is the moms are quite entertaining once Dennis makes some quick edits and adds a laugh track to the surveillance footage.

Mother, May I Dance with Mary Jane's Fist, A Lifetone Original Movie for Adult Swim

Movie for Television, Adult Swim, December 7, 2017

I served as Composer and Co Producer on this TV movie for Adult Swim. Mother May I Dance for Mary Janes Fist, written and performed by Mary Elizabeth Ellis Day and Artemis Pebdani, started as stage play at UCB LA and NYC. Produced by Abso Lutely Productions, the TV Movie features Mary Elizabeth Ellis Day, Artemis Pebdani, Reggie Watts, Margaret Cho, Drew Droege and Jimmi Simpson.

In this homage to the melodramatic made-for-TV-movie genre, aspiring ballerina Mary Jane Stevens moves to a new town with her emotionally abusive mother in hopes of escaping her physically abusive father.

It's Always Sunny in Philadelphia

Season 9: "The Gang Saves the Day"

In this episode, the gang gets caught in the back of a market during a robbery and we see each of their day dreams. "Covington House" is a sitcom parody for Dee's daydream, where she imagines being placed by witness protection as a butler for a rich and handsome man. 

I wrote the lyrics, music and I played all the instruments as well sang all the vocals.

It's a Hit

Pilot Presentation

I served as the Composer for this pilot that was produced by The Orchard. Written by Chris Modoono and Gil Zabarsky (who also stars), It's a Hit stars Abby Elliott, Tim Matheson, Tyler Hilton, Kevin Daniels, Gil Zabarsky, Kathleen Littlefield and Guest Stars Mark Evan Jackson.

Star assassin Samantha Steele (SNL’s Abby Elliott) re-evaluates her career choice when she realizes that she’s losing her passion for killing people for money.

It's Always Sunny in Philadelphia

Season 9: "The Gang Makes Lethal Weapon 6"

The episode titles says it all - the gang makes their own version of the "Lethal Weapon" films. They wanted an authentic score similar to Michael Karman's Lethal Weapon scores which include emulating the featured solos of Eric Clapton's guitar and David Sanborn's saxophone.

click for full album

click for full album


Erik's Basement

Pilot Presentation

"Erik's Basement" follows Erik, a young man in love with a girl who lives in the building he is the custodian of. Part Sitcom, part Sketch Show and part Puppet Show, the pilot boasts a cast including Glenn Howerton, David Hornsby, Drew Droege, Artemis Pebdani and Eliza Skinner.

The show is written, directed and created by Erik Hoffstad (who also stars in it). Erik's past work includes being a writer and producer for Behind the Scenes content for It's Always Sunny in Philadelphia as well as the popular youtube channel LetsGOtoCLASS.

click for full album

click for full album


It's Always Sunny in Philadelphia

Season 4: "The Nightman Cometh"



Charlie stages a musical based on his song "The Nightman", and recruits the rest of the gang to help him stage it. The popularity of the infamous episode spawned a 6 city National tour with the cast, which I musically directed, Conducted and Emceed.

I co-wrote the music with Charlie Day. Directed by Matt Shakman, we rehearsed and performed the musical live and uninterrupted.





"Nightmare Cometh" Past Performance Dates

It's Always Sunny in Philadelphia - LIVE!
04/17/09 & 04/17/09 The Troubadour Los Angeles, CA

It's Always Sunny in Philadelphia LIVE NATION Tour
09/15/09 - House of Blues Boston Boston, MA
09/15/09 - Beacon Theatre New York, NY
09/17/09 - Tower Theater Upper Darby, PA
09/22/09 - Moore Theatre Seattle, WA
09/24/09 - Nob Hill Masonic Center San Francisco, CA
09/25/09 - Hollywood Palladium Los Angeles, CA

It's Always Sunny in Philadelphia and Family Guy Benefit for Haiti
02/14/2010 - The Gibson Amphitheater Los Angeles CA