XML Query returns all columns from a SharePoint list, I just want one column

Hi All,

I am trying to do something new, which I haven't done before. Basically, I have a SharePoint list, and want to return just one column from the list. The below query, returns all columns, any idea where I have gone wrong?!

<Query>
<SoapAction>http://schemas.microsoft.com/sharepoint/soap/GetListItems</SoapAction>
<Method Namespace="http://schemas.microsoft.com/sharepoint/soap/" Name="GetListItems">
<Parameters>
<Parameter Name="listName">
<DefaultValue>{8B463D94-4BB7-4B74-9C01-E4D5719CAC13}</DefaultValue>
</Parameter>
<ViewFields>
<FieldRef Name="Title"/>
</ViewFields>
</Parameters>
</Method>
<ElementPath IgnoreNamespaces="True">*</ElementPath>
</Query>