The ornamental design for a hat with headphones, as shown and described.
FIG. 1 is a perspective view of a hat with headphones showing my new design;
FIG. 2 is another perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof; and,
FIG. 9 is an enlarged view of portion 9 shown in FIG. 1.
The broken lines and the unshaded areas within the broken lines in the drawings depict portions of the hat with headphones that form no part of the claimed design.