He already wowed the critics, or us anyway, and now Billie Joe Armstrong has wowed Broadway pundits, too — they used the word "boffo," which is always a good sign — as his weeklong stint as St. Jimmy in the "American Idiot" musical led to record receipts for the six-month-old production.

According to Variety, "Idiot" raked in nearly $1.1 million in ticket sales last week — up $600,000 from the previous week — a new record for the show. Its previous high was $870,000, set in June. Attendance was also up, as Armstrong and the cast performed before a house at 93 percent capacity.

All in all, thanks to Armstrong, "American Idiot" was the week's third-biggest play, trailing only venerable productions "Wicked" ($1.5 million) and "The Lion King" ($1.2 million) at the box office.

Variety added that the sales spike for "Idiot" was "particularly impressive, given the last-minute nature of the Armstrong appearance." He announced he'd be appearing as St. Jimmy — replacing actor Tony Vincent in the role — on Sunday (September 26), two days before his debut at New York's St. James Theatre.

Armstrong wrapped his stint in the production on Sunday, signing off with a flurry of tweets that promised he'd "f--- sh-- up" during his final performance, and then summing up his time on the stage thusly: "Broadway was such a great experience. Best cast ever. Hopefully I'll do St. J again. If you haven't seen ['American Idiot'], f---ing see it! It's great!"