Jeffrey Li was born on March 6, 2005, and is from Toronto, Canada. In 2015, he appeared on the television shows China's New Generation of Sound and Little Big Shots, singing a duet of "You Raise Me Up" on the latter with Season 12 contestant Celine Tam. 
He wants his parents to buy him a dog, and judge Simon Cowell told Jeffrey that he would buy him one if he did well in his audition.
Jeffrey Li 13-Year-Old Sings Incredible Rendition Of 'You Raise Me Up' - America's Got Talent 2018
Jeffrey Li's Judge Cuts performance in Episode 1309 consisted of singing Whitney Houston's "One Moment in Time". His performance was not strong enough to advance to the Quarterfinals, eliminating him from the competition along with Angel Garcia.