"**Tadap Tadap Ke**" from the movie *Hum Dil De Chuke Sanam* is a soulful and heart-wrenching song that captures the intense pain of unrequited love. Sung by KK and composed by Ismail Darbar, the song is a poignant expression of longing and heartbreak. The powerful vocals and emotive lyrics convey the agony of separation, making it one of the most memorable songs from the film.