Long before Joaquin Phoenix started his quest to become the oddest celebrity in Hollywood, Crispin Glover was the king of weird. The quirky actor has become well known for playing bizarre characters, but one of his best oddball performances came on Late Night With David Letterman back in July of 1987. You can check it out for yourself after the jump.

Basically, Glover showed up for his interview promoting River's Edge dressed as Rubin, from the then unreleased film Rubin and Ed. Glover took the stage in groovy clothes, platform shoes and a horrendous wig. Unfortunately, Letterman and the audience had no clue what was going on, and when one audience member (who may or may not have been planted) heckled the actor, things went from unusual to downright strange.