Looking at recent single releases “Red Solo Cup,” “Beers Ago,” “I Like Girls That Drink Beer,” and “Hope On the Rocks,” it would appear that Toby Keith is definitely in the zone for drinking songs right now.  His chart success, however, has not been quite so consistent lately.  He scored the first double-platinum hit of his career with the ubiquitous sing-along and viral video hit “Red Solo Cup” only to miss the Top 15 with both of the singles from last year’s Hope On the Rocks album.