Dean Ween performing with Ween at the Outside Lands Music and Arts Festival in San Francisco, California on August 30, 2009. Dean Ween performing with Ween at the Outside Lands Music and Arts Festival in San Francisco, California on August 30, 2009. Dean Ween performing with Ween at the Outside Lands Music and Arts Festival in San Francisco, California on August 30, 2009. Dean Ween performing with Ween at the Outside Lands Music and Arts Festival in San Francisco, California on August 30, 2009.