Rich isn't a fan of the new Colin Kaepernick advertisement.
(Undated) -- Big & Rich's John Rich is slamming Nike for choosing Colin Kaepernick as the face of their "Just Do It" 30th anniversary campaign.
The GRAMMY-award winning singer called out Nike in a series of tweets yesterday and even predicted the brand's stock to fall.
Kaepernick -- a former San Francisco 49ers player -- originally led player protests during the National Anthem in the NFL.
Since the announcement, thousands have taken to social media to say they will never wear Nike again.
