What’s the song in the ‘Westworld’ season 2 trailer?

It’s not Nirvana, it’s HBO.

The second season of the premium cable network’s breakout show, Westworld, is set to debut on April 22. A new trailer for the show has dropped, and it features a song known and loved by millions, but in a very different form.

When “Heart-Shaped Box” was first released in 1993, Nirvana was among the biggest bands in the world. The Nevermind album had already conquered radio and the charts, and the group’s new legions of fans waited anxiously for what was next.

It arrived in the form of the abrasive but still melodic “Heart-Shaped Box” single. Produced by Steve Albini, the track retained the loud-quiet dynamics found on such hits as “Smells Like Teen Spirit. With the delicate verses balanced by the brutal chorus, the track topped the Billboard Alternative Songs chart, and somewhat ironically peaking at Number 4 on the Mainstream Rock chart.

See photos of "Westworld" star Evan Rachel Wood:

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Evan Rachel Wood through the years
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Evan Rachel Wood through the years

Actress Evan Rachel Wood attends the 'Summer Catch' Westwood Premiere on August 22, 2001 at the Mann Village Theatre in Westwood, California.

(Photo by Ron Galella, Ltd./WireImage)

Actress Evan Rachel Wood attends the One Seven (Nightclub) Grand Opening Celebration on November 30, 2001 at One Seven, Hollywood & Highland in Hollywood, California.

(Photo by Ron Galella, Ltd./WireImage)

Evan Rachel Wood during 'Harry Potter and The Sorcerer's Stone' Los Angeles Premiere at Mann Village Theatre in Westwood, California, United States.

(Photo by SGranitz/WireImage)

Colin Hanks, Mila Kunis, Gregory Smith and Evan Rachel Wood.

(Photo by J. Vespa/WireImage)

Shane West and Evan Rachel Wood

(Photo by J. Vespa/WireImage)

Evan Rachel Wood in Sama Eyewear during Movieline's 4th Annual Young Hollywood Awards - Inside at The Highlands in Hollywood, California, United States.

(Photo by Ray Mickshaw/WireImage)

Evan Rachel Wood, brother Ira Wood & mother Sara during 'Simone' - Los Angeles Premiere at National Theatre in Westwood, California, United States.

(Photo by SGranitz/WireImage)

Evan Rachel Wood during 'Cold Mountain' - Los Angeles Premiere at Mann National Theater in Los Angeles, California, United States.

(Photo by Jon Kopaloff/FilmMagic)

Co-star & co-writer Nikki Reed and Evan Rachel Wood

(Photo by L. Cohen/WireImage)

Evan Rachel Wood and Brady Corbet

(Photo by Mark Sullivan/WireImage)

Evan Rachel Wood, David Bowie, and Scarlett Johansson seen backstage at BOWIE's first concert visit to Los Angeles in nearly seven years. This is the second of four sold out shows of the rock legend's first major world tour in nearly a decade that encompasses 17 countries.

(Photo by L. Cohen/WireImage)

Actress Evan Rachel Wood arrives at the premiere of Pretty Persuasion at the ArcLight Cinerama Dome on August 9, 2005 in Los Angeles, California.

(Photo by Frazer Harrison/Getty Images)

Evan Rachel Wood and Jamie Bell during 'King Kong' New York City Premiere at Loews E-Walk in New York City, New York, United States.

(Photo by Robin Platzer/FilmMagic)

Evan Rachel Wood during The Hollywood Life 6th Annual Breakthrough of the Year Awards - Arrivals at Music Box at the Fonda in Hollywood, California, United States.

(Photo by Jon Kopaloff/FilmMagic)

Marilyn Manson and Evan Rachel Wood

(Photo by John Shearer/WireImage)

Actress Evan Rachel Wood from the film 'King of California' poses for a portrait during the 2007 Sundance Film Festival on January 24, 2007 in Park City, Utah.

(Photo by Mark Mainz/Getty Images)

Michael Douglas and Evan Rachel Wood

(Photo by Michael Bezjian/WireImage)

Actress Evan Rachel Wood attend The Behind the Camera Awards held at The Highlands on November 9, 2008 in Hollywood, California.

(Photo by Michael Bezjian/WireImage)

Actors Joseph Gordon-Levitt, Evan Rachel Wood, Abbie Cornish and Ryan Phillippe attend The Behind the Camera Awards held at The Highlands on November 9, 2008 in Hollywood, California.

(Photo by Jesse Grant/WireImage)

Actress Evan Rachel Wood arrives at the Hollywood Foreign Press Association's Annual installation luncheon held at the Beverly Hills Hotel on August 11, 2009 in Beverly Hills, California.

(Photo by Frazer Harrison/Getty Images)

Actor Dylan McDermott and actress Evan Rachel Wood during the Hollywood Foreign Press Association's installation luncheon held at the Beverly Hills Hotel on August 11, 2009 in Beverly Hills, California.

(Photo by Kevin Winter/Getty Images)

Actress Evan Rachel Wood during an interview with Jimmy Fallon on June, 25 2009. 

(Photo by Dana Edelson/NBC/NBCU Photo Bank via Getty Images)

Joe Manganiello and Evan Rachel Wood stand onstage at the 2010 MTV Video Music Awards held at Nokia Theatre L.A. Live on September 12, 2010 in Los Angeles, California.

(Photo by Jeff Kravitz/FilmMagic)

Actress Evan Rachel Wood arrives at the Andrea Bocelli Foundation's 2011 Benefit Gala at The Beverly Hilton hotel on December 9, 2011 in Beverly Hills, California.

(Photo by Jon Kopaloff/FilmMagic)

Philip Seymour Hoffman, Evan Rachel Wood, George Clooney and screenwriter Beau Willimon attend a Gala Screening of 'The Ides Of March' during the 55th BFI London Film Festival at Odeon Leicester Square on October 19, 2011 in London, England.

(Photo by Dave M. Benett/Getty Images)

Actress Evan Rachel Wood performs at LACMA 2012 Art + Film Gala Honoring Ed Ruscha and Stanley Kubrick presented by Gucci at LACMA on October 27, 2012 in Los Angeles, California.

(Photo by John Sciulli/Getty Images for LACMA)

Chris Evans, the face of Gucci Guilty and actress Evan Rachel Wood attend the 'The Ever Changing Face of Beauty' W Magazine opening reception at the Park Avenue Armory on February 14, 2012 in New York City.

(Photo by Ben Hider/WireImage)

Evan Rachel Wood arrives at the 69th Annual Golden Globe Awards held at the Beverly Hilton Hotel on January 15, 2012.

(Photo by: Vince Bucci/NBC/NBCU Photo Bank)

Actors Kerry Washington and Evan Rachel Wood attend LACMA 2012 Art + Film Gala Honoring Ed Ruscha and Stanley Kubrick presented by Gucci at LACMA on October 27, 2012 in Los Angeles, California.

(Photo by Frazer Harrison/Getty Images for LACMA)

Actress Evan Rachel Wood attends 'Meet The Actor: Charlie Countryman' at the Apple Store Soho on November 13, 2013 in New York City.

(Photo by Mike Pont/WireImage)

Busy Philipps, Kat Coiro and Evan Rachel Wood attend the screening of 'A Case of You' during the 2013 Tribeca Film Festival at BMCC Tribeca PAC on April 21, 2013 in New York City.

(Photo by Henry S. Dziekan III/WireImage)

Actress Evan Rachel Wood arrives at the 2014 LACMA Art + Film Gala Honoring Quentin Tarantino And Barbara Kruger at LACMA on November 1, 2014 in Los Angeles, California.

(Photo by Jon Kopaloff/FilmMagic)

Evan Rachel Wood, Joe Manganiello and Emma Roberts attend the Opening Night Reception for the 2014 Maui Film Festival at Wailea on June 4, 2014 in Wailea, Hawaii.

(Photo by Andrew Goodman/Getty Images for The Maui Film Festival at Wailea)

Composer Chrysanthe Tan, actress Evan Rachel Wood, and actress T.V. Carpio attend The L.A. Gay & Lesbian Center's 2014 An Evening With Women (AEWW) at The Beverly Hilton Hotel on May 10, 2014 in Beverly Hills, California.

(Photo by Imeh Akpanudosen/Getty Images)

Evan Rachel Wood arrives at the 'Into The Forest' premiere 2015 Toronto International Film Festival held at The Elgin on September 12, 2015 in Toronto, Canada.

(Photo by Michael Tran/Getty Images)

Kristin Chenoweth and Evan Rachel Wood attend The New York Special Screening Of Lucasfilm's STRANGE MAGIC At The Tribeca Grand Hotel Hosted By The Cinema Society on January 17, 2015 in New York City.

(Photo by Dimitrios Kambouris/Getty Images)

Evan Rachel Wood attends AOL's BUILD Speaker Series: Evan Rachel Wood at AOL Studios In New York on January 16, 2015 in New York City.

(Photo by D Dipasupil/FilmMagic)

Actress Evan Rachel Wood talks with Late Night with Seth Meyers host, Seth Meyers backstage on October 27, 2016.

(Photo by: Lloyd Bishop/NBC/NBCU Photo Bank via Getty Images)

Actress and singer Evan Rachel Wood performs on stage at The Build Series Presents Evan Rachel Wood Discusses The New Show 'Westworld' & Performs With The Group Rebel and a Basketcase at AOL HQ on October 25, 2016 in New York City.

(Photo by Monica Schipper/WireImage)

Actress Evan Rachel Wood attends the premiere of 'Westworld' at TCL Chinese Theatre on September 28, 2016 in Hollywood, California.

(Photo by Jason LaVeris/FilmMagic)

Evan Rachel Wood and Ellen Page arrives at the Premiere Of A24's 'Into The Forest' at ArcLight Hollywood on June 22, 2016 in Hollywood, California.

(Photo by Steve Granitz/WireImage)

Cast member Evan Rachel Wood participates in a panel for the series "Westworld" at the HBO Television Critics Association Summer Press Tour in Beverly Hills, California July 30, 2016.

(REUTERS/Danny Moloshok)

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For the Westworld trailer,”Heart-Shaped Box” has been reimagined by composer Ramin Djawadi, best known for his music on Game of Thrones.

As the cast of Westworld—including actors Jeffrey Wright, Thandie Newton, Evan Rachel Wood—play out their various existential crises onscreen, Djawadi’s dramatic piano and strings arrangement of the Nirvana classic plays ominously in the background.

The haunting, discordant melody of the song works well in the sweeping and symphonic form for the clip, setting the stage for another dramatic season featuring man wrestling with his own runway technology and imagination.

The musical treatment is in keeping with the show’s first season which featured Djawadi’s takes on The Rolling Stones’ “Paint it Black,” Radiohead’s “No Surprises,” and Soundgarden’s “Black Hole Sun” among others.

Watch the drama unfold below.

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