I'm talking about the church services to where it looks more like a rock concert rather than a worship service.
I suppose the question would be which aspects of the "rock concert" you are referring to.
Some people find the use of drums to be unacceptable, although I struggle to see anything wrong with individual instruments. If you're talking about the kind of church services where you can walk outside and think you were standing outside a nightclub, the chances are that sort of thing is an attempt to appeal to young people.
Sometime I think it's good to make it clear that Christianity isn't about following endless requirements that begin "Thou shalt not". If you talk to some people you'd think that Christians aren't allowed to have a beer, smoke a cigarette, listen to music unless it's played on a pipe organ at a tempo sufficiently slow you fear you'd die of boredom before the end of it and so on. It doesn't hurt to make it clear that Christians can have fun.
Holding a service that uses contemporary music is just about a bit of variety. You can sing hymns accompanied by a band, or more contemporary songs, or whatever else.
I remember the very last service I went to at one particular church where they played a video from Bethel church. The music was relentlessly repetitive and seemed loud for the sake of being loud. I got absolutely no sense it was anything other than a gig, some young woman was writhing and screaming into the microphone and the whole thing seemed to be a "look at us" performance. After 10 minutes I walked out and haven't been back to the church since. It wasn't just that one video that pushed me away, the church had taken to playing videos from IHOP in Kansas City that also feature relentlessly repetitive music (I'm talking about singing the same line or two of a song for anything up to 10 minutes at a time, and if anyone is wondering I did time it because I wondered just how long they'd keep it up).
So I guess there's good and bad about things that might look like a rock concert. Was there something specific about it that troubles you?