No need to remove the bumper, I just did it yesterday:
Remove the plastic undercover corner piece or slightly bend it, its held in by about 3 screws.
Slowly remove the nut that holds the fog light assembly and slide the assembly out, dont loose the nut and two washers.
Since the wire is still there, it will not go far, but it will go far enough to remove 2 screws and pop the glass out
replace bulb
replace glass + two phillips scews
slide back, secure with two washers and a nut
test
put back the plastic undercover piece.
done.
Took me about 20 min