Kannum Kannum, the first single from Hello Kadhal, starring Arya, was released on 23 October 2026, with the music label Think Music putting out the video song on YouTube and the actor sharing it on X. Composed by G.V. Prakash Kumar, the track is sung by Kapil Kapilan and Sivaangi with lyrics by Vivek, and posts by Arya and the label carry a hashtag announcing the film for 4 December.
Song and film credits
According to the label's YouTube description, Sherif M and Azar choreographed the song. The same credits list Arya, Nikhila Vimal and Vaishnavi Chaitanya in the cast, with Nikhil Muraly as director.
The film is produced by The Show People and Silver Grain Pictures and written by Sunu AV and Jyothish M. Halitha Shameem is credited with additional screenplay and the Tamil dialogues, Jeeva Sankar with cinematography and Binu Nepolean with editing.
Telugu version
The same day, Arya and Think Music also released Kallu Kallu, the Telugu version of the song, from Hello Prema. Those posts list the Telugu title for release on 4 December as well.
Vivek, the lyricist, wrote on X that he was happy to work with Arya and G.V. Prakash Kumar on the film. Think Music had announced the song's 5 PM release earlier on 23 October.
