The ornamental design for a beverage can, as shown and described.
FIG. 1 is a top perspective view of a beverage can showing my new design;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top view thereof; and,
FIG. 8 is a bottom view thereof.
The broken line portions of the beverage can in FIGS. 1-8 represent unclaimed portions of the claimed design and form no part thereof. The dot-dash broken lines in FIGS. 1-8 represent an unclaimed boundary line and form no part of the claimed design.