Quote Originally Posted by handrawn View Post
now you know why its call 'ed 'itting
Steve has the correct use here.

(Never use an apostrophe with possessive pronouns: his, hers, its, theirs, ours, yours, whose. They already show possession so they do not require an apostrophe.)
(The only time an apostrophe is used for it's is when it is a contraction for it is or it has.)