Subway riders around the world -- including right here in Los Angeles -- will be leaving their pants at home on Sunday.
The annual flash mob, the No Pants Subway Ride, is in its 10th year thanks to Improv Everywhere, a New York-based group of urban pranksters. The LA-version is celebrating its third year of participation.
The premise is simple: ride the subway with no pants, and play it cool.
"We also would like to stress the importance of acting normal (and not knowing why everyone around you has no pants on either)," according to the group's Facebook page.
Technically, there's one more caveat: "Note that this is NO PANTS, not NO UNDERWEAR day. Wouldn't want anyone arrested for indecent exposure)!"
Organizers recommend a $6 Metro day pass, pointing out that the evading-fare citation is $250.
The fun starts around 2 p.m. at Union Station. Participants will take the Metro Red Line 2:34 p.m. train to Hollywood & Highland. For the more ambitious pants-free participants, more rides have been planned.
Pants-free rides are scheduled Sunday for 47 cities spanning 22 countries, according to Improv Everywhere.