Trending badgeTrendingPosted 1 hour agoSubscribe to BuzzFeed Daily NewsletterCaret DownAfter Lily Allen Seemingly Revealed What Went Down Between Her And David Harbour, She Wore This "Iconic" Halloween Costume"lily as madeline and demi as poot won halloween this year and I could not be happier with that."by Mychal ThompsonBuzzFeed StaffFacebookPinterestLink Lily Allen might have one of the best celebrity Halloween costumes this year. Dave Benett / Getty Images So, the release of Lily's fifth album, West End Girl, seemingly put her entire relationship with David Harbour on blast.