Chaeryeong
On February 12, 2019, Lee made her debut as a member of Itzy alongside Yeji, Lia , Ryujin, and Yuna, with the digital single album It'z Different. It featured  "Dalla Dalla"  and "Want it?" and incorporated EDM and Hip Hop elements. Dalla Dalla the lead single of It'z Different got high ranks on notable music sites and recorded one-thousand views in 18 hours and one-hundred million views in 57 days in Youtube. They also won the prize of M Countdown eight days after their debut. Being open the 4th generation of K-pop, they got the nickname Monster Lucky.