The billboard advertisement of Flowerman.
Flowerman is a film advertised in Grand Theft Auto IV. The billboard is a spoof of Zoolander's poster, with two men forming a letter "F" in the same way the Zoolander poster shows a man forming the letter "Z". It cannot be watched by the player.
While listening to The Intelligent Agenda, host Mike Riley is interviewing his guest, actor Brendan Roberts, who is the star of Flowerman.