Pro tip: Record yourself singing, put it on YouTube, and let the vile comments section humiliate you into never crooning again, ever.
Don't ruin a summer banger by barking insufferably over the music; that's Pitbull's job. Singing in the car is especially annoying because you're sharing a small, enclosed space with other people. Like, if you followed someone into a phone booth or a bathroom stall and belted out the hook of a Rihanna joint, you'd walk out with a black eye and coughing up mace. Treat the car like it a public restroom, minus the whole defecating thing.