The quirky Norwegian brand will relocate its four-year-old unit on Robertson Boulevard in Los Angeles and open a store in the Mall of America.
The recipients of the NewGen Men sponsorship will show their spring/summer 2014 collections during the next round of London Collections: Men shows.
The party took over the Top of the Standard at the Standard High Line.
Covering two floors and 1,200 square feet, the store is set in an historic Georgian townhouse at 35a Dover Street.
ATM Anthony Thomas Melillo, which launched in spring 2012 as a high-fashion T-shirt line for women and men, has expanded into a total lifestyle line.
The multiyear agreement with Imperial comes as the label aims to further expand its men’s business, which started in 2006.