Katharine Tremblay is an ASMR artist who gained popularity by sharing videos on her TikTok account, asmrmpits. She specializes in creating sounds with her mouth, attracting more than 1.2 million fans on the platform. Tremblay made her ASMR debut with a 2021 video titled "ASMR eating my blue yeti with the foam mic cover." Among her notable works, an early 2022 video titled "I wash my hands" has amassed over 400,000 views, while another popular video featuring an ASMR emoji challenge has garnered over 2 million views.