FIG. 1 is a top perspective view of a barbecue grill brush showing our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof, the left side being a mirror image;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines adjacent the shaded areas and the continuous broken line immediately adjacent the inside of each brush pad in FIG. 7 represent the bounds of the claim while all of the other broken lines illustrate portions of the grill brush which along with the aforementioned boundaries, form no part of the claimed design.