Gibson has listed 20 Essential Facts about the J-180 and mention Billie Joe twice in the article, talking about his signature version of the guitar.

[quote]17. The Billie Joe Armstrong J-180 is the latest version of this legendary guitar. The Green Day leader has always favored Gibson acoustics, and his signature model is sumptuous indeed. It features a modified V-profile neck to Armstrong's specifications.

18. The Billie Joe Armstrong J-180 also adds a Fishman Matrix VT preamp and piezo pickup system; an under-saddle acoustic pickup along with active volume and tone controls in a soundhole-edge-mounted preamp. It also has a traditional pin bridge.[/quote]

The Billie Joe J-180 was released earlier this year, only 100 were made for 2011, and they cost a cook $4,000. More info about his guitar can be read at Gibson.com

Thanks to desertrose for posting on the forum.