The 'I Just Took a DNA Test' meme originates from the opening lyrics of Lizzo's 2017 hit single 'Truth Hurts,' which exploded in popularity on TikTok and Twitter in 2019. The line 'I just took a DNA test, turns out I'm 100% that bitch' quickly transitioned from an empowering anthem into a versatile comedic template. Internet users began subverting the iconic reveal by replacing the final phrase with self-deprecating jokes, niche interests, or relatable struggles. The meme remains a popular way to humorously announce one's 'true nature,' capturing the vibe of modern internet culture's mix of confidence and irony.