WPF Binding within text literal

Is there any way to do this in a binding expression:

Text="Hello {Binding CurrentUser}"

ie:

<TextBlock HorizontalAlignment="Right" Foreground="#3163AB" Margin="0,0,0,5" 
    FontWeight="Bold" Text="Hello {Binding CurrentUser}" />

Obviously I could break it out into two separate textblocks, but this would be much nicer.