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Wanted to change my spark plugs. Unfortunately they wouldn't turn at all. They are really stuck in there really tight. Have anyone had this kind of problem with spark plug? Any suggestion?

vehicle is it?

It's a Chevy impala

I have used a c02 fire extinguisher put over spark plug give it a short blast then put socket on and Crack them loose. If you are not pretty handy with that kind of thing take it to a shop

Last summer I had the same issue in removing all 8 spark plugs in a classic car that were last changed in 1986. I used a mixture of 50% acetone and 50% automatic transmission fluid. The acetone eliminates any rust and the automatic transmission fluid lubricates. Put both in a spray bottle, mix well and take the plug wires off. Then spray the plugs thoroughly 2 to 3 times a day for 2-3 days. After the third day or so, at least for me, the plugs came out with a little bit of effort.  
Good luck.

Thanks, I will give it a try.

B_ob said "It's a Chevy impala "

If this is a newer impala with aluminum heads, just be careful. If you manage to brake them loose but they are still binding, really lube them and work them back and forth, If you force them and they are coming out tight the threads on the head could start piling up (stripping). Trouble is these days that cars generally run well and spark plug replacement is infrequent and leads to this problem sometimes.