Change REST Method Response XML Node name in MVC 4

We are building a REST Service using MVC4 and added method like:

    public IEnumerable<Contact> GetAllContacts()    {        return repository.GetAll();    }

The response of this method in XML generated as:

<ArrayOfContact xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><Contact><Id>1</Id><Name>Alice</Name><Email>alice@example.com</Email></Contact><Contact><Id>2</Id><Name>Bob</Name><Email>bob@example.com</Email></Contact><Contact><Id>3</Id><Name>Charles</Name><Email>charles@example.com</Email></Contact></ArrayOfContact>

I would like to change the tag <ArrayOfContact> to <Contacts>.I know if it would be a property of a class then we could add attributes to the property to change it.

But is it possible to change the Root Node of Response?