An Error Was Encountered

Error Number: 1064

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ':http: AND is_visible = 1' at line 1

SELECT artists.name, artists.slug, artists.id AS aid, artists_news.id FROM artists,artists_news WHERE artists.id = artists_news.artist_id AND artists_news.news_id = :http: AND is_visible = 1