This billboard memorializing music legend Prince was part of Twitter’s 2016 OOH campaign. The mysterious image of The Purple One paired with the hashtag symbol visually evoked the compelling inscrutability of the artist’s life and work, while also inviting in-depth conversation and participation. For this campaign, Ad Age’s Creativity said Twitter was addressing “the issues dominating the conversation” in 2016 and that the campaign “helps to make the point that the [Twitter] brand is here to keep you posted on the world’s goings-on, as they’re happening.”