Pop songs will get shorter on average by the end of this decade because of faltering attention spans and 'skipping culture' on streaming services, experts say.  Our attention spans have dropped from 12 seconds to eight since 2000 and our song skipping culture has emerged in response, meaning it’s more vital for artists to hook listeners in early, load choruses up front and keep the overall track swift. At the end of the decade it’s predicted that the average song will be a maximum of 2