I had a dream I was spying on someone in the mall...not really spying..but I saw her there and sort of followed her....The ending scene is that she is in a line, at the end, with some "hip" young people of different races, just standing looking around and twirling her hair....only thing is that she is in black and white (grey shades) except her clothes which are shades of red...(like in the movie Sin City)...and over the intercom a song is played...It was Beyonce Knowles "You just dont know about me....to the left..to the left"....song.....
I was wearing my blue polo shirt with and khaki pants and in full color....but staying out of view.....
Please help with answers

Did you know the girl in the dream?  Also, was the mall one you have been to?

Yes I know the girl....
No...never been to that mall before...

It would seem from your description that this girl has something you want.  Does she have a secret that you want to know?  Perhaps she is a co-worker and fits in with the other co-waorkers you have well.  Maybe she radiates some kind of trait that you admire and that explains the red clothes.  This may be since the colors you were wearing were more muted.  Perhaps she is a passionate person, or someone who is naturally social.

The unknown mall sounds like you are venturing into unknown territory.  Do you consider yourself a shy person?  Would you approach this person under normal circumstances?

My next question would be, how well do you know her?  If she is a friend, perhaps you are looking to deepen the relationship?

It's always funny to have music in a dream.  This may be because you had just heard the song, or it was playing after you fell asleep.  That would be the ultimate "I just can't get this song out of my head".  If you think it may be more, take a look at the lyrics and see how that relates to the situation you may be in with the girl in question.

Always remember that people can make more of an impression than we think sometimes, and it oftens comes through in dreams.