[PastMember]

Make sure that the 2nd screen is part of the extended desktop [settings>control panel>display>settings>] click on the secondary monitor and make sure that the box for "extend my windows desktop to this monitor" is checked.

Then you can drag the singer's screen onto the 2nd monitor and double-click it to make it full size.

(wanna freak out your pals? Put the singers screen on the monitor at half size then double click it.... it'll be full size.... THEN... when someone you know gets up to sing and you want to mess with them a little; double-click it again and it'll be half size.... the words will be almost too tiny to read. It's a hoot!)