Get ready to feel with "i must be having fun tonight [cause my old lady's mad as hell]" by heavy eric and the good time girls. With a 149 BPM and 4 time signature, the rhythms flow in A major. Spanning 3 minutes and 12 seconds, "i must be having fun tonight [cause my old lady's mad as hell]" radiates high energy from start to finish. Let the vibes of this track carry you away.