I went to a concert at my local church.
How was it?
It was a religious concert and I'm not a very religious person so I felt a bit weird
There is nothing wrong with attending a concert to see if you like it. It is fine that you don't as long as you weren't disrespectful.
I had to sing and everything.
It sounds like it wasn't that fun. But, hey, at least you now know how those type of events are like.