As requested by a youtube viewer, here is how to remove the Proudly Powered By WordPress” from the Twenty Twelve WordPress theme. BE VERY CAREFUL doing this because it requires an edit to the footer.php file. If you delete anything other than these consecutive lines of code, you can really mess your site up. Do this at your own risk:

Go to “Appearance”, “Editor”, and click on “footer.php”. Remove the lines below: (NOTE: There may be some characters off in the code below so you will have to visually find it as opposed to copy and pasting this code into your browsers “Find” feature.)

<div class="site-info"><?php do_action( 'twentytwelve_credits' ); ?><a href="<?php echo esc_url( __( '', 'twentytwelve' ) ); ?>" title="<?php esc_attr_e( 'Semantic Personal Publishing Platform', 'twentytwelve' ); ?>"><?php printf( __( 'Proudly powered by %s', 'twentytwelve' ), 'WordPress' ); ?></a></div><!-- .site-info -->