There are two types of embedding semantic web information on a web page.
Apparently Google is embracing Json-LD, as it does not interleave semantic web content with actual data. it is easier for people to have webpages like that. To keep things separate.
Now take a look at http://www.ticketmaster.com/James-Taylor-tickets/artist/736262?brand=&tm_link=tm_homeA_g1&hot_ticket_brand=home . they seem to be using json-ld at the buttom of the page