Kelly Clarkson belting out 'Drunk in Love' in a car is all of us

This isn't exactly the best performance of Kelly Clarkson's career.

The singer belted out Beyonce's 'Drunk in Love' while showing off her best boob-popping dance moves …and she's pretty much completely off key.

So was it on purpose?

Check out the clip above of the 33-year-old cranking out the jams with KIIS 1065's Kyle and Jackie O to decide for yourself.

Then compare her skills to Selena Gomez's candid off-duty singing in the video below…