Squeak as wheel rotates when driving, what could it be?

[sant6236]

Noticed this the last week or two....

 

[d2huffman]

Good chance it is a brake - rotor. Easiest way to check if drag, jack up and spin tire.

 

[berettashot117]

I had this same problem, turned out five of the six lugnuts were loose! very scary, I would check those ASAP

 

[ogden8]

could be the warning tab on your brakes indicating they are low. You don't want those squeaking too long or else the tabs will make groove in the rotor and you'll need new ones.