... but the comedian was just taping a video to promote his upcoming U.S. college tour.

Russell Brand filed for divorce from Katy Perry in December, but this video, in which he is seen removing his wedding band, was made back in November. A bit ironic?

As he slips off his ring, Brand, 36, says, "I'm going to place this somewhere very, very safe for the next week."

The British comedian also talks about looking forward to visiting sororities.

He adds, "I don't know what a sorority is, except for what I have seen on Nudevista that they are sort of sex clubs for women."

Makes you wonder what Katy thinks of this video. Russell's soon-to-be ex wife recently cancelled a scheduled appearance at this week's People's Choice Awards.