2. What are “popularity metrics" and what role do they play in social media?

Thanks to the ubiquity of social media and streaming, artists have been given new ways to reach their audiences at the literal click of a mouse. But these platforms offer artists more than just easy access to fans. Each one harbors a goldmine of data.

Content can easily spread through the social connectivity graphs as followers can further share the content to their own list of followers. Two metrics have been used to measure the popularity of a tweet: the number of users that receive a message in their tweet feed, or most commonly, the number of retweets.

what are the phrases to choose from?