Hey Britney You Might Want To See This - atlasoceanvoyages News
Some people consider hey to be an inappropriate greeting (hay is for horses), but among those who do not, i wouldn't say that hey yourself has any inherently negative connotation. Basic grammar may tell you the hey is an interjection. when used to specifically address a person (or an audience,) as in your example, the hey there is a vocative adjunct with an.
