cue, queue

Cue or cue means a signal for an actor's entrance, exit, lines or movements on stage--
She was supposed to exit, but she missed her cue.
You're not paying attention! That was your cue!
Cue may be a verb ( action word )--
How tragic! Cue the violin music!
Will you cue me, and help me memorize my lines?
Cue is also a term used in pool or billiards, meaning the plain white ball, or the stick--
"Even if you do got a two-piece custom-made pool cue..."
Knocking the cue ball into the pocket is a scratch.

Queue or queue ( rhymes with cue ) means a line of people waiting for something--
The queue for the concert starts in the next block!
I didn't want to wait, and the queue was long.
Queue may be a verb ( action word )--
Would everyone please queue up behind this line?
Queue may mean a long tail or braid of hair--
Traditional Chinese men sometimes wore a long braided queue.

Now that you know that, you can say--
"The band music will be our cue to form a queue near the prize booth."