updated 01/22/2010 AT 1:00 PM ET
•originally published 01/22/2010 AT 1:30 PM ET
Joaquin Phoenix is back in front of the camera, minus the beard and shades he sported on Late Show with David Letterman last February 2009 – and making fun of his on-air bizarre behavior.
A clean-shaven Phoenix, 35, along with Miley Cyrus and Liv Tyler, appears in a YouTube video for a charity called To Write Love on Her Arms, which is in the running to win an online competition for a $1 million grant to help suicide prevention.
The four-minute video opens with charity founder Jamie Tworkowski and Phoenix sitting in a loft-style space. Tworkowski explains during a music-video shoot with Phoenix’s band that the charity’s name was initially inspired by Phoenix – and the Magic-Marker scribblings on his arms.