Alyssa McKay

Portland TikTok Star Alyssa McKay Is Staying Home and Getting Famous. At just 20 years old, Alyssa McKay made a national brand and living for herself on the social media app TikTok—she has more followers than comedian Jimmy Fallon. McKay joined TikTok in 2018 as a senior in high school. She is also a doppelganger of Dove Cameron.