Bootstrap 3 like button

Hi guys, how can i oputput the like button and counter the way i like it in various components theme files?

For example i am using Twitter Boostrap 3 and i want the like button to be displayed like this

<a class="btn btn-lg btn-danger" href="javascript:void(0)"> # <i class="ico-heart"></i></a>

* the "#" mark will be likes counter inside the button.

So, any tip on how can i obtain this output ?

Thanks in advance !