Spanish Future Tense?

I know in the Future Tense Regular, all the endings are the same
-ar = é ás á emos éis án
-er = é ás á emos éis án
-ir = é ás á emos éis án
(Correct me if that is wrong)

But, is this also the case with all the irregular verbs?
^ Are the irregular Future verb endings the same as those above? ^

Thanks for all the help, I have an upcoming spanish exam when I return to school.
=D
Yeah, I prefer the Voy + Infinitive, but we have to learn this =/