A Global Citizen Festival rigger accidentally fell to his death during preparation for the event in Johannesburg, TheWrap has learned.

The worker, a veteran local subcontractor who has not yet been identified, died Saturday at FNB Stadium after falling from the roof as he was working on lighting, according to a person with knowledge.

“This afternoon in Johannesburg, a rigger working on behalf of a production partner for the Global Citizen Festival, suffered fatal injuries arising from a fall at the site,” Andrew Kirk, Global Citizen’s director of public relations told TheWrap in a statement. “Global Citizen has been advised that the deceased was an experienced rigger and was wearing all appropriate safety gear and equipment.”

Also Read: Beyonce, Jay-Z 'On the Run II' Show Interrupted as Drunken Fan Storms Stage, Chases Them

“Global Citizen extends our deepest sympathies to the family of the deceased and all of his colleagues and friends,” the statement went on to say.

According to Global Citizen, the circumstances surrounding the incident are being investigated in partnership with local authorities.

This year’s event, titled “Global Citizen Festival: Mandela 100,” honors Nelson Mandela’s 100 birthday. Oprah Winfrey will deliver a keynote address at the event, which will include performances by Beyoncé and Jay-Z, Pharrell Williams, Chris Martin, Ed Sheeran, Black Coffee, Usher and Kacey Musgraves, among others.

“The Daily Show’s” Trevor Noah will host the event, along with Naomi Campbell, Dave Chappelle, Gayle King, Sir Bob Geldof, Bozoma Saint John and Forest Whitaker.

Also Read: 'The Daily Show With Trevor Noah' to Go International With 'Self-Deportation' Special From South Africa

The Global Citizen Festival is an annual music festival which was founded in 2012 and organized by Global Poverty Project.

Since its start, the organization has secured over $30 billion, which is set to affect the lives of one billion people suffering from extreme poverty, according to its site.

You can watch the festival Sunday night on MSNBC, starting at 9 p.m. ET / 6 p.m. PT.

17 Stars Who Lost Major Weight for a Role, From Christian Bale to Lily Collins (Photos)

Actors like Taylor Kitsch, Chris Hemsworth and Anne Hathaway have undergone dramatic weight loss for roles.
Tom Hanks - "Philadelphia" (1993)

Tom Hanks lost 26 pounds for his Oscar-winning turn as AIDS patient Andrew Beckett in "Philadelphia."

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YouTube
Matt Damon - "Courage Under Fire" (1996)

Matt Damon reportedly lost 40 pounds for his role as a soldier in "Courage Under Fire" opposite Denzel Washington.

Also Read: Matt Damon Mocks Fellow Astronauts in ‘The Martian’ Deleted Scene (Video)
YouTube
Tom Hanks - "Cast Away" (2000)

Hanks again took it down a few (belt) notches in "Cast Away."

Also Read: Tom Hanks Reunites With Wilson From ‘Cast Away’ 15 Years Later (Video)
20th Century Fox
Christian Bale - "The Machinist" (2004)

Christian Bale became frighteningly thin for "The Machinist," dropping 60 pounds. This would not be the only time he would put his body through an extreme transformation, going to similar lengths for his part in "The Fighter" and "Rescue Dawn."

Also Read: AFI FEST Party Pictures: Ryan Gosling, Christian Bale, Will Smith, Brad Pitt, Angelina Jolie Shine in Hollywood (Updating Photos)
Paramount Classics
Beyoncé - "Dreamgirls" (2006)

Beyoncé dropped 20 pounds from her "Bootylicious" body with the help of a cleanse for her role in "Dreamgirls."

Also Read: Beyonce Pulls Biggest Power Play Yet: No Interview for Vogue Cover Story
YouTube
Michael Fassbender - "Hunger" (2008)

Michael Fassbender dropped an alarming amount of weight to play IRA hunger striker Bobby Sands in "Hunger."

Film4
Mila Kunis - "Black Swan" (2010)

Mila Kunis slimmed down by 20 pounds for the ballet thriller "Black Swan."

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Fox Searchlight
Natalie Portman - "Black Swan" (2010)

So did Kunis' Oscar-winning "Black Swan" co-star Natalie Portman.

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Fox Searchlight
Seth Rogen - "The Green Hornet" (2011)

Seth Rogen slimmed down considerably for "The Green Hornet." Unfortunately, the audience for that movie was also small.
Columbia Pictures
50 Cent - "All Things Fall Apart" (2011)

50 Cent looked more like a thin dime after dropping 50-plus pounds to play a football player with cancer in the indie drama "All Things Fall Apart."

Also Read: 50 Cent Testifies That His Flashy Lifestyle Is an Illusion
Instagram
Anne Hathaway - "Les Miserables" (2012)

Anne Hathaway opened up her mouth to sing -- but apparently not to eat much -- for "Les Miserables," shedding around 25 pounds for the Oscar-winning role.

Also Read: ‘Les Misérables’ Footage of Anne Hathaway Singing ‘I Dreamed a Dream’ Screens at CinemaCon
Focus Features
Matthew McConaughey - "Dallas Buyers Club" (2013)

Matthew McConaughey upped his profile and won practically every possible acting award -- including an Oscar -- after dropping nearly 40 pounds to play a Texan with AIDS for the "Dallas Buyers Club."

Also Read: Matthew McConaughey on ‘Dallas Buyers Club’ Weight Loss, Tracking Wolves With Young Son (Videos)
Focus Features
Jared Leto - "Dallas Buyers Club" (2013)

McConaughey's co-star Jared Leto was no slouch in the weight-loss department either, shedding 30 to 40 pounds and picking up his own Oscar in the process.

Also Read: Jared Leto, Celine Dion Pay Emotional Tribute to Paris at AMAs (Video)
Focus Features
Zoe Kravitz - "The Road Within" (2014)

Zoe Kravitz weighed just 90 pounds at the time of filming for "The Road Within," having lost 20 pounds for the part. But she revealed that like her character in that movie, she too had struggled with anorexia in her real life.

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YouTube
Chris Hemsworth - "In the Heart of the Sea" (2015)

Chris Hemsworth shocked the internet when the "Thor" hunk revealed the dramatic weight loss he endured to play a shipwreck survivor in the fact-based period drama.

Also Read: Chris Hemsworth Shares Shocking Photo of Extreme Weight Loss for ‘In The Heart of the Sea’
Instagram
Liam Neeson - "Silence" (2016)

Liam Neeson shed some serious weight for Martin Scorsese's historical drama "Silence." Then 65, Neeson at one point said he took his weight loss "too far" in service of the part.

Also Read: Liam Neeson on ’60 Minutes': Why The ‘Non-Stop’ Star Makes All Those Action Movies (Video)
YouTube
Lily Collins - "To the Bone" (2017)

Lily Collins had struggled with anorexia and bulimia in her own life, but she said that losing weight to play a woman suffering from anorexia was important to do justice to the role. She then worked closely with nutritionists to ensure she actually gained the weight back.
Netflix
Taylor Kitsch - "Waco" (2018)

Taylor Kitsch revealed on the "Ellen DeGeneres Show" that he lost 30 pounds to play cult leader David Koresh in Paramount Network's limited series "Waco." “I’d get 500 calories at breakfast and then it would go from like veggies in the mid-afternoon to chicken broth after 4 o’ clock. And then you go run, which is awesome!” he said.
Getty/Ellen