Let's be honest. Someone stands up to sing a solo at church, or a guest singer has come to the service. What do you expect from them? Singing! Singers are usually asked into a church to sing. But that is not the case for many singers. The temptation is to talk...to share between songs. THIS IS ACTUALLY TRUE OF MANY WORSHIP SONG LEADERS, AS WELL! Being balanced is the key. If you are a singer, lean more heavily to that which you have been called to do at the venue. I have heard singers tell me their real gift is preaching. Hmmm. Then study to be a preacher. If it is to sing... then sing. It is to lead worship singing, then lead it!