Playas gonna play / Haters gonna hate / That's the way it is / That's just how it's been
2012, Eric Grzymkowski, A Year of Living Sinfully: A Self-Serving Guide to Doing Whatever the **** You Want, Adams Media (2012), ISBN 9781440512537, unnumbered page:
If anyone asks why you're wearing a bathrobe in public, just roll your eyes and keep on strutting. Haters gonna hate.
2012, Vanessa Wieland, "Amanda Palmer: On the Art of Songwriting, Staying Busy, & Being Honest", in 2012 Songwriter's Market (ed. Adria Haley), Writer's Digest Books (2012), ISBN 9781599632322, page 85:
[Amanda Palmer:] I think the key is to NOT defend yourself too much. Haters gonna hate, especially in the age of the Internet, where everyone can hide behind their walls and masks while spewing venom, truisms, and righteousness.
For more examples of usage of this term, see Citations:haters gonna hate.