Get ready to feel very happy with "They Don't Know (Originally Performed by Tracey Ullman) [Vocal Version]" by Mega Tracks Karaoke Band. With a 114 BPM and 4 time signature, the rhythms flow in C major. Spanning 2 minutes and 59 seconds, "They Don't Know (Originally Performed by Tracey Ullman) [Vocal Version]" radiates average energy from start to finish. Let the very happy vibes of this track carry you away.