- "Bring out the Beast."
Horn is a parody of Axe Deodorant, and Horn's effect lasts 48 hours (2 days). Horn billboards and advertisements can be found in some areas; the most notable one is located in Star Junction because this billboard features a large elaborate tube which looks like an enlarged horn. At 1 pm, large amounts of green gas are sprayed out of the end of this horn, to simulate the deodorant spray. It stops at 2 pm. In Grand Theft Auto V, all 24/7 and LTD Service stores sell Horn Deodorant, and a magazine depicting an advertisement of Horn (ripped from GTA IV) is found in the De Santa Residence, next to Jimmy De Santa's bed.