INFINITE member Sungyeol's younger brother Daeyeol made his debut through TOHEART's music video.

Woolim Entertainment stated: "Daeyeol, who is Sungyeol's brother, completed filming the music video of TOHEART's 'Tell Me Why'."

Lee Daeyeol, born in 1993, had been a trainee at Woolim Entertainment for the past 2 years. He was first introduced to the public when Sungyeol showed his family members during SBS "Law of the Jungle". He also was part of Tasty's stage dancers.

Meanwhile, TOHEART's "Tell Me Why" will be released as a digital single on April 7.