Halestorm’s Lzzy Hale has praised teenage climate activist Greta Thunberg following her Sept. 23 speech at the United Nations. Hale called Thunberg “our modern day Joan of Arc” before also comparing her to young renegades like Anne Frank and Rosa Parks.

Before speaking at the U.N., Thunberg sailed across the Atlantic in a carbon-neutral yacht from Plymouth, England to New York City. Her speech was regarded for its gravity on the issue of climate change and the young activist’s righteous anger toward worldwide representatives.

"The eyes of all future generations are upon you. And if you choose to fail us, I say - we will never forgive you,” Thunberg said.

Hale shared a photo of Thunberg from her U.N. speech along with the following:

Our modern day Joan of Arc. @gretathunberg Thank you for your candor, grace,logic and beautiful anger. Wield your sword. You are sitting at a round table of young women who have inspired and shaped humanity. Here’s a few!

In 1960 at the age of 6, Ruby Bridges became the first black student to attend William Frantz Elementary School in New Orleans. The first-grader faced protests and riots/had to walk to school accompanied by federal marshals. She became an icon in the Civil Rights Movement. A German-born Jewish girl, Anne Frank rose to fame following the publication of the diary she kept while hiding from the Gestapo. After her family was discovered and arrested, Frank died at Bergen-Belsen concentration camp in 1945 at the age of 15. Her father Otto the only surviving family member was moved reading her diary after the war and published it.It has been translated into more than 60 languages. Malala Yousafzai is a Pakistani human rights advocate known for her activism in promoting education for girls. In 2012, when she was just 15 years old, a Taliban gunman shot her in an assassination attempt in retaliation for her work. At the age of 17, she received the Nobel Peace Prize, becoming the youngest Nobel laureate. Nine months before Rosa Parks' famous arrest, 15-year-old Claudette Colvin stood up against segregation in Alabama by refusing to give up her seat on a bus in Montgomery. She was arrested, and a year later was one of the original plaintiffs in Browder v. Gayle, a case that led the U.S. Supreme Court to declare bus segregation laws in Alabama and Montgomery unconstitutional. In 1963, 9-year-old Audrey Faye Hendricks joined thousands of fellow kids and teens in the Children's Crusade, a nonviolent demonstration in Birmingham to stand against segregation. Hendricks spent a week in jail for her activism. Images from the Children's Crusade highlighted the violent response from local authorities &caused outrage around the world. And English author Mary Shelley was just 18 years old when she wrote Frankenstein, which many credit as the origin of science fiction! Who run this mother?

Update: Hale has offered a response to those critical of her posting and support of Greta Thunberg. Have a look below:

Thunberg's determination also caught the attention of Angels & Airwaves leader Tom DeLonge, who called her a "superhero," adding, "Her passion, intellect and endurance is exactly what we all should aspire to have."

Halestorm have been plotting a secret project before beginning their next album and tour cycle. According to Hale, the band already has two albums worth of material to sort through.