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To come up with its ranking, the streaming service said it looked at several factors, including the number of people listening to an artist each month, artists with the most features on Spotify's curated playlists, and the top-performing artists by genre.
The list includes high-profile pop acts like Justin Bieber (22 years old) and Ariana Grande (23), and the young and talented Chance the Rapper (23), among other notable artists.
Check out the music of Spotify's top 25 under 25 below: