Make an object Always face the camera, and always be upright? So I'm planning a new portfolio piece, and for it to turn out how I want, I need some help with constraints. There is going to be a star that always faces the camera, and that much I figured out. The problem is I want the star to always be right side up from the cameras POV, so I think there needs to be an additional rotation constraint as well. I don't know how to go about it though. Advice?
Locked Track Constraint

Locked Track Constraint
Setup Suzanne  akin to a compass needle via the locked track constraint. Suzanne faces the camera (To -Y) and can only rotate on the Z axis (Lock)