With People SING IN A BAND it helps the PUBS and CLUBS & BANDS as it gets more people in there.
The BAND will PLAY their music and let you sing.
We hope you bring lots of friends & can dance with your song.
Also, you can SING "HAPPY BIRTHDAY" to your friend.
The BANDS will advertise how many songs are available. 
They will list a MUSIC STYLES and SONGS - They also may show you lyrics.