2008 pontiac grand prix tail lights only comes on when foot is on the brake when off the brake lights are off at night two help

Would it be just the brake lights coming on stepping on the brake, and the tail light bulbs are just burnt out?

When I press the brake pedal they're all on but let my foot off the pedal they're off

May just want to check the bulbs out first with the tail lights on, sometimes its just a bad connection with the bulb, but check to see if any are burnt out.

My tail lights only come on when brake applied was hit on drivers side needs rear light cover changed broken build still have no lights on back of car ?