This goes out to all my girls
That's in the club rocking the latest

from Beyoncé – Run the World (Girls) Lyrics on Rap Genius

Meaning

While other songs shout out to working women and college grads Beyonce is showing love for the girls rockin it hard to the new jams in the club. There’s power in being yourself and rocking out!
http://www.youtube.com/watch?v=XWCwc1_sYMY

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