Viewing Two Clips While Color Correcting

I'm color correcting and I would like to view a clip, and in another viewer, see the clip that I am adjusting. This way I can try to match the color by eye sight. The color match tool does not always work, and I can't find any way to view two clips at once. Is there a way to do this or do I need to move my files to a seperate program to color correct?