WATCH: Why Kuya Kim shaved hair off on 'Showtime'

MANILA -- Just when everyone thought the "Magpasikat Week" performance of Anne Curtis, Kim Atienza and Eric "Eruption" Tai was over, a man came on stage and shaved off the hair of the "Matanglawin" host.

Atienza, popularly known as Kuya Kim, touched the hearts of viewers on Thursday as he and his co-performers successfully staged their "Magpasikat" performance, which highlighted climate change.

Curtis and Tai played two ninja warriors tasked to kill "Khu Lim-Lim" (Kuya Kim), an evil entity who personifies global warming.

Curtis and Tai wowed the audience with their ninja moves and dance routines, but the performance turned serious when the silhouette of "Little Me" grand winner Xiamara Sophia Vigor was projected on a huge glass canister.

"I am the child from the future at kami ang susunod na henerasyon ng daigdig, ang susunod na salinlahi. Pero kapag hindi napigilan ang pagsira ng daigdig, mawawala kami. Ang pagliligtas sa daigdig matagal na dapat nagsimula. Pero hindi pa huli ang lahat, may pagkakataon pa. Save the earth while you still can," Vigor said.

After she gave her message, Atienza stood between Curtis and Eruption as he gave a meaningful message.

"Lahat tayo ay may responsibilidad para sa ating planeta. Lahat tayo ay may kakayahang iligtas ang ating nag-iisang tahanan. Ikaw, Ako, tayo ang simula ng pagbabago," Atienza said.

A man then went up to the stage and started shaving Atienza's hair off.

According to the 48-year-old "Showtime" host, it was his personal decision to get the buzz-cut live on TV. This was also the first time he did in his entire life.

"Para sa akin, ito ay ang hudyat na ang pagbabago ay dapat simulan na. At dapat simulan ito sa ating sarili. Ito ang aking maliit na ambag. Isang simbolo para simulan ang pagbabago," he explained.

Photo by Michael Bagtas for ABS-CBNnews.com

The performance has become one of the most tweeted topics on Twitter with netizens applauding Atienza's move to spark a social movement.

Hands down sayo Kuya Kim! You even want to sacrifice your own hair for the change of our world. #MagpasikatAnneKimEruption

— Van Pelt (@charrleess) October 22, 2015

Napaka-inspiring nung performance. Ang ganda nang message. If we want change, laet's start it within ourselves. #MagpasikatAnneKimEruption

— Caryl Oculam (@aymBebeCai) October 22, 2015

Its our time to do our share! Lets end the climate change and start d big change in our own little way! #magpasikatannekimeruption

— SLATERAddictsMIN (@SLATERaddictsMi) October 22, 2015

the message is clear... we're already experiencing the effect of Global warming... and it's not good... #MagpasikatAnneKimEruption

— WynNie(@TifaLockhart_15) October 22, 2015

Atienza's performance also garnered praises from the judges.

Guest judge Amy Austria said she became emotional seeing someone shave his head for an advocacy.

"Naiiyak ako kanina habang ginugupit 'yang buhok mo kasi alam kong ilang taon mong inalagaan yan. And for you to do that live sa TV at nakikita ng lahat ng tao, very powerful 'yong naging stand mo at 'yong challenge mo sa tao," she said.

Tirso Cruz III also urged everyone to start doing his part to fight climate change.

"This is truly a wake-up call para sa ating lahat. This is a very clear and loud message for all you people out there. Huwag na tayo, 'yong susunod na henerasyon nalang ang isipin natin," he said.

Meanwhile, veteran actors Nonong "Bangkay" de Andres and Lilia Cuntapay expressed their heart-warming message to Atienza, Curtis and Tai.

"Ang sabi namin, manalo o matalo basta ang mensahe ay solido, ang mensahe ay pumasok. Isang maliit na bagay lamang para iparating sa madlang people na ang climate change po ay nandito na," Atienza told the audience.

Photo by Michael Bagtas for ABS-CBNnews.com