2PM is back with another party anthem — their latest single “GO CRAZY!” from the album of the same name. The catchy song was written by member Jun.K and features an addictive motorcycle dance. It surely has Hottests remembering the groups “10 out of 10″ roots! 2PM’s concept for the release is fitting for a dance song with brightly colored clothing in all sorts of patterns. Jun.K was wearing a Marcelo Burlon County of Milan Orange Marcos Sweater ($575). The orange striped sleeves are tiger-inspired and the shirt features graphic lines that are common in designs from this brand.