Portable entertainment support system for a pickup truck box

An entertainment support system is attached to a pickup truck having a plurality of receptacles in sidewalls of a truck box spaced above a truck bed. The entertainment support system includes a first mount having a first horizontal arm extending between opposing sidewalls of the truck box, and a vertical arm extending orthogonal to the first horizontal arm. The entertainment support system further includes a second mount including a second horizontal arm extending between the opposing sidewalls parallel to and spaced from the first horizontal arm.