How do I Link A TabControl Header to calling MenuItem Header

<Menu Name="mnuMain" DockPanel.Dock="Top" HorizontalAlignment="Stretch"  Width=" Auto" MenuItem.Click ="menuClick">
              <MenuItem Header="_File">
                  <MenuItem Command="{Binding NewWorkspaceCommand}" Header="_New Tab" InputGestureText="Ctrl + N" />
                  <MenuItem Command="{Binding CloseWorkspaceCommand}" Header="_Close Tab" InputGestureText="Ctrl + F4" />
                  <MenuItem Command="{Binding ExitCommand}" Header="E_xit" InputGestureText="Ctrl + X" />
              </MenuItem>

<TabControl.Background >
                <ImageBrush ImageSource="/Resources/images/background.png" Stretch="UniformToFill" />
            </TabControl.Background>

            <TabControl.ItemTemplate>
                <DataTemplate>
                    <WrapPanel>
                        <TextBlock Text="{Binding Header}" />
                        <Button Command="{Binding CloseCommand}" Content="X" Margin="4,0,0,0" FontFamily="Courier New" Width="17" Height="17" VerticalContentAlignment="Center" />
                    </WrapPanel>
                </DataTemplate>

            </TabControl.ItemTemplate>

        </TabControl>

 public class MainViewModel : ViewModelBase
    { 
             
        #region Constructor

        public MainViewModel()
        {
            
            Workspaces = new ObservableCollection<workspaceviewmodel>();
            Workspaces.CollectionChanged += Workspaces_CollectionChanged;
             
        }

        #endregion
          
        #region Event Handlers
        public void  menuClick(object sender, RoutedEventArgs e)
        {
           MenuItem item = e.OriginalSource as MenuItem;
          if (null != item)
            {
                CallingMenuName = item.Name;{}
                
            }
         }
        
        void Workspaces_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
        {
            if (e.NewItems != null && e.NewItems.Count != 0)
                foreach (WorkspaceViewModel workspace in e.NewItems)
                    workspace.RequestClose += this.OnWorkspaceRequestClose;

            if (e.OldItems != null && e.OldItems.Count != 0)
                foreach (WorkspaceViewModel workspace in e.OldItems)
                    workspace.RequestClose -= this.OnWorkspaceRequestClose;
        }

        private void OnWorkspaceRequestClose(object sender, EventArgs e)
        {
            CloseWorkspace();
        }

        #endregion

        #region Commands

        private DelegateCommand _exitCommand;
        public ICommand ExitCommand
        {
            get { return _exitCommand ?? (_exitCommand = new DelegateCommand(() => Application.Current.Shutdown())); }
        }

        private DelegateCommand _newWorkspaceCommand;
        public ICommand NewWorkspaceCommand
        {
            get { return _newWorkspaceCommand ?? (_newWorkspaceCommand = new DelegateCommand(NewWorkspace)); }
        }

        private void NewWorkspace()
        {
            frmCustomer oCustomer = new frmCustomer();
          
            var workspace = new WorkspaceViewModel { Header = "New Tab" } ;
            
            Workspaces.Add(workspace); 
            /// = oCustomer.Content; 
            SelectedIndex = Workspaces.IndexOf(workspace);
           
        }

        private DelegateCommand _closeWorkspaceCommand;
        public ICommand CloseWorkspaceCommand
        {
            get { return _closeWorkspaceCommand ?? (_closeWorkspaceCommand = new DelegateCommand(CloseWorkspace, () => Workspaces.Count > 0)); }
        }

        private void CloseWorkspace()
        {
            Workspaces.RemoveAt(SelectedIndex);
            SelectedIndex = 0;
        }

     
        
        #endregion

        #region Public Members

        public ObservableCollection<workspaceviewmodel> Workspaces { get; set; }



        private int _selectedIndex = 0;
        public int SelectedIndex
        {
            get { return _selectedIndex; }
            set
            {
                _selectedIndex = value;
                OnPropertyChanged("SelectedIndex");
            }
        }

        private string _CallingMenuName = "";
        public string CallingMenuName
        {
            get { return _CallingMenuName; }
            set
            {
                _CallingMenuName = value;
                OnPropertyChanged("CallingMenuName");
            }
        }

        #endregion
    }
}