On the April 11 airing of MBC FM4U's 'Ji Suk Jin's 2 O'Clock Date', DJ Ji Suk Jin congratulated the girls for their domination on the music charts with 'What is Love?', and asked, "Don't you think that anything you sing will succeed now (since you guys are so successful)?"

SEE ALSO: Feel the Beat, Live the Words: TWICE Lyrics that speak to us

Nayeon replied, "No it's not like that. I've never thought any of our songs would do well when I heard them for the first time. I'm always worried."