The ornamental design for a spotlite for attachment to the bill of a sport hat, as shown and described.
FIG. 1 is a perspective view of a spotlite for attachment to the bill of a sport hat showing my new design, it being understood that the broken lines are for illustrative purposes only;
FIG. 2 is an enlarged front elevational view of the spotlite;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof; and
FIG. 6 is a left side elevational view thereof.