BackboneJS Get specific item from Model of Collection

Question

I want to get the title of each model and after that split the title into artist + title.

The data is JSON delivered by https://gdata.youtube.com/feeds/api/users/beta/uploads?alt=jsonc&v=2&max-results=48&orderby=published

My collection looks like this:

videoCollection = Backbone.Collection.extend({
    url: function() {
        return 'https://gdata.youtube.com/feeds/api/users/beta/uploads?alt=jsonc&v=2&max-results=48&orderby=published';
    },
    parse: function(res) {
        return res.data.items;    
    }           
}

First of all I tried:

var title = this.collection.each(function(item){
    item.get('title');
});

but that didnt work very well, so how can I get the title and split it up?