Get ready to feel very happy with "I Don't Know (Karaoke Instrumental Track)[In the Style of Lostprophets]" by Backtrack Professional Karaoke Band. With a 84 BPM and 4 time signature, the rhythms flow in C♯/D♭ minor. Spanning 3 minutes and 22 seconds, "I Don't Know (Karaoke Instrumental Track)[In the Style of Lostprophets]" radiates average energy from start to finish. Let the very happy vibes of this track carry you away.