Actually it's "social media rockstar"
(And yes I am one.)
"Hey you!" Not as in the Pink Floyd Hey You... but as a greeting.
And I'm remembering the reason I stopped listening to music on Pandora.
A list of things about "you probably didn't know about." I hate these lists claiming I didn't know about things.
People starting off their youtube videos with "hey guys"
yup ... instant declaration that you're an amateur. "Hey guys" (or "What's up, YouTube") followed by "I thought I'd make a video about..."