Multiple listeners simultaneously

[ClassicRox]

Question for those in the know:

For the past few months, I've seen in my log several users (usually 5 or more) log on to my station at the exact same time. These users all have different IPs (some from Germany, US, UK, etc). They stay online for 1 song, then all log off at the same time.

Can anyone explain this?

I appreciate any response. Thanks.