Today FM broke the world record for most heads shaved simultaneously at the Mansion House in Dublin today.
Listen live here: http://www.todayfm.com/player/
Independent.ie spoke to several of the attendees this morning about their motivation for participating. Many of them are doing it for relatives and friends who have either beaten or passed away from the disease.
Several families and couples have signed up to shave each other. Kathleen Deevy signed up to shave the head of her partner Niall Cronin. "We're doing this because my cousin Shauna died in November 2011."
"I'm a bit worried now", Niall joked. "She practised on the dog last night and he's not doing too well!"
Emma Blake spoke about getting her head shaved - but that's not all she did. "I'm donating my ponytail to the Rapunzel foundation... it'll grow back!"
Watch the video above.
The world-record was confirmed at 12.11pm and several of the shavees recorded the events as they happen to share on social media later.
Darragh O' Neill told Ray D'Arcy "I wanted to record it so I can stick it up on Facebook later."
Today FM smashed the previous world record of 77 with over 170 heads being shaved. Listen back on today FM to the reactions as people see their new styles.