Hidden Agenda ft. Loptimist is the 18th track on Box of History, an album from Braille. It was released on April 4, 2008 along with 22 other tracks. A few more of the best tracks are Build Snippet ft. Greenjade, Treatment ft. Ohmega Watts, Everything Changed From Box of Rhymes, Going Through It ft. Sivion, Broken Jaw ft. Redcloud, Enter Gritty From Box of Rhymes, and Guilty By Association ft. Night Owls.