AC/DC Pirates

The AC/DC Pirates (AC/DC 海賊団 Eishī Dīshī Kaizokudan) are a pirate crew that originated from an unknown country. They are led by Captain AC, and her brother, Commander DC. Their combined bounties are 400,000,000.

Etymology
AC stands for "alternating current," while DC stands for "direct current." Also, AC/DC is the name of a rock band.