iRCTunes for Mac

From GenThree:

iRCTunes XCA is a plugin for X-Chat Aqua that allows you to completely control iTunes. Using a series of /itunes commands, you can quickly and easily export the now playing info to IRC channels and networks, or even reverse it, with commands like Play, Pause and Rewind, you can control iTunes from an IRC shell or Chat Window.

Based on Tego's itunes.pl script, iRCTunes uses the best methods toward performance and reliability, along with usability. A powerful GUI extension makes the most of X-Chat Aqua's capabilities, ensuring you not only get the power of years of development and refinements, but also a simple, sleek and elegant way to control them.