NCT 127 recently made a comeback with their 4th full album, '2 Baddies,' and wrapped up the first-week sales with a total of 1,547,595 copies sold.

NCT 127 continues with their promotions as they perform in various music programs. Additionally, NCT 127 members continue to do the 'Baddies' challenge with fellow artists.

On September 23, NCT 127's Mark and Jaehyun invited rapper Lee Young Ji to do a short dance-off to the choreography of '2 Baddies.'

Fans love the interaction between the three idols and commented, "Young Ji is so pretty," "Young Ji is so good at dancing," "I love how they dance together," "Young Ji's lucky she gets to dance with Mark and Jaehyun," "Young Ji's so cute," "Young Ji mentioned them on her bubble, lol," and "Young Ji killed it with her moves."