Which music streaming platform pioneered the 'influencer playlist' model that allows social media personalities to curate branded playlists as a promotional tool for artists?

The music industry has transformed how it promotes artists and releases in the digital age. Influencer marketing has become a cornerstone strategy for music labels and independent artists alike. This trivia question explores how streaming platforms and influencer partnerships have changed the promotional landscape for music releases. Test your knowledge about the intersection of music promotion, social media, and influencer collaborations!

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Spotify, with their 2016 introduction of influencer-branded playlists that drove 8.1 billion streams in their first year
Apple Music, with their 2017 launch of 'Influencer Radio' channels featuring creator-curated music selections
SoundCloud, with their 2015 'SoundCloud Spotlight' program pairing influencers with emerging artists
YouTube Music, with their 2018 'Creator Mix' feature that allowed content creators to monetize playlist curation