Is it ok for a christian to like these bands?

YES YES YES! lol sorry, but yeah, don't let your religion limit your life. Christianty should be mainly about you and your relationship with God. First of all none of those bands are bad. P.O.D is a christian band. Idk who Dead by Sunrise is, but yeah...most music I hear doesn't influence me, so if you listen to stuff about doing bad things?, I guess it's ok as long as you don't start doing them.

Of course it is as long as you dont listen for the wrong reasons. But if you want to listen to that kind of music there's plenty of cool Christian bands that play that music. Check out Oh, Sleeper.

No.

It's not okay to like Linkin Park. Fullstop.

Seriously though, Ozzy Osbourne is himself Christian.

You have a choice to chose what you listen to, God gave you choice. So its your choice. Whether its ok or not it all dependence on your own religious views and how strict they are some christian churches don't even let you listen to christian music.

No way! I use to play bass guitar in heavy metal bands before I got saved. Ozzy Osbourne will certainly corrupt your soul. He wants you to go to hell with him.

We are free to do all things, but there are things which it is not wise to do. We are free to do all things, but not all things are for the common good.

1 Cor 10:23

All things are lawful for me, but not all things are profitable. All things are lawful for me, but I will not be mastered by anything 1 Cor 6:12

Finally, brethren, whatever is true, whatever is honorable, whatever is right, whatever is pure, whatever is lovely, whatever is of good repute, if there is any excellence and if anything worthy of praise, dwell on these things.

Phillipians 4:8

Yes it should be fine as long as you know the right way is heaven and the music doesn't consume you.

Become atheist or let your god send you to hell for the musical tastes he gave you.

No, they are all satanic, Ozzy has a song dedicated to satanist Aliester Crowley, that is not glorifying to God... you should not be listening to this trash...

it is ok for anyone to like any band they choose. if someone tells you other wise, then they are simply taking away your freedom.