"Stranger Things" season four hit Netflix on 27 May. Ahead of the widespread release, Allen and Harbour were seen at the show's official premiere on 14 May. As cameras snapped away, the couple, once again, were the centre of attention, as Harbour flaunted a custom suit featuring the characters of "Stranger Things" with details of "the upside-down" embellished from his suit jacket to his pants.
The actor's custom suit was made by Union Western. He told Vogue, "My wife [Lily Allen] at one point worked with Union Western. They make these mad suits for rockstars, so I figured, let's f***ing do this!"