When he returns to reprise his iconic role as the Joker in "Batman: The Killing Joke," "Star Wars" alum Mark Hamill will lend his singing voice to the film's soundtrack. According to The Hollywood Reporter, Hamill will perform "I Go Looney," a song featured in a memorable scene from Alan Moore and Brian Bolland's graphic novel of the same name.

The rest of the soundtrack, however, will be a score performed by a live orchestra. It was composed by Lolita Ritmanis, Kristopher Carter and Michael McCuistion, who have also worked on popular DC animated series like "Justice League," "Batman Beyond" and "Young Justice." Likewise, the orchestra will include some musicians who worked on "Batman: The Animated Series." The soundtrack will be available for purchase starting July 22.

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You can listen to a clip of the score's "End Credits" below:

Additionally, here's the full track list from the film:

How the Story Begins*

We've Got a Robbery**

Uncle Not Pleased***

Narcissist and Sociopath**

Hit on Yacht***

Serious Business*

Bats and Babs Cross the Line***

Rooftop Regrets***

The Abyss**

Batman Was Right*

Storage Unit Corpses***

The Halls of Arkham**

Joker Imposter***

Making a Killing**

Jeannie Flashback*

Looking for a Clue**

Broken Books***

Hoods Present the Hood***

Nothing Will Be the Same**

Trapped in a Nightmare*

Jeannie Is Gone*

Bats Pummels for Clues***

Throw the Book**

Horrifying Images**

Bats Receives Tickets***

Ghost Train Stops*

Chemical Factory Heist***

Batman Arrives at the Carnival*

Merry-Go-Round Source**

By the Book**

All It Takes Is One Bad Day*

Let Me Help You**

Oracle Is Here***

End Credits**** 3:07
35.

"I Go Looney" ***** Performed by Mark Hamill


* composed by Lolita Ritmanis


** composed by Michael McCuistion

*** composed by Kristopher Carter


**** composed by Michael McCuistion, Kristopher Carter & Lolita Ritmanis


***** music by Michael McCuistion, Kristopher Carter & Lolita Ritmanis


Warner Bros. Animation's "Batman: The Killing Joke" will be available for Digital HD download on July 26, and arrives on Blu-ray/DVD on August 2. The film is making its World Premiere at San Diego's Comic-Con International on July 22.