Wieden, co-founder of the iconic advertising agency and adland icon, passed away on Saturday at 77 years old.
The advertising giant was the brains behind Nike's infamous 'Just Do It' tagline.
Watch the film conceptualised by Wieden+Kennedy.
They will succeed Neal Arthur and Karl Lieberman as president and chief creative officer, respectively.
'Ukraine now', which features 16 artists, is open to the public until 31 May.
DeCourcy left Wieden+Kennedy in December, announcing that she would retire from the advertising industry.
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