Okay, she's pushing it a bit; but both are forms of communication within strict limits which require conciseness. She'd be on firmer ground with tweeting, I think. And it's certainly so that lyrics and rap have connections with poetry - though a skilled lyric is less requirement for success than a musical hook or two.
Carol Ann Duffy: 'Poems are a form of texting'
http://www.guardian.co.uk/education/2011/sep/05/carol-ann-duffy-poetry-texting-competition
Carol Ann Duffy: 'Poems are a form of texting'
http://www.guardian.co.uk/education/2011/sep/05/carol-ann-duffy-poetry-texting-competition
