1.
A song and dance act is a performance in which a person or group of people sing and dance.
<i><i>N-UNCOUNTi>: <i>usui> <i>Ni> <i>ni>i>
2.
If you say that someone is making a song and dance about something, you mean they are making an unnecessary fuss about it. (BRIT INFORMAL)
He used his money to help others-but he never made a song and dance about it.
= fuss
<i><i>PHRASEi>i> [disapproval]