Camera Tilt using Track To constraint?

I am trying to animate a rather tricky camera angle. I have the camera setup with a bezier curve with a Track To constraint to aim the camera where I want. However, I also want the camera to tilt slightly to one side during the shot, and with the Track To constraint I seem to not be able to do that. The camera will not rotate to the sides, it forces itself to stay level with the upward direction. Thanks in advance for your help.

Never mind, I figured it out.