Oembed provider issue

I’ve added an oembed provider to my wp functions

wp_oembed_add_provider( ‘http://batanga.tv/oembed-json/?vid=*’, ‘http://batanga.tv/oembed-json/’,false );

on my single.php I request the content like this:
$embed_code = wp_oembed_get(“http://batanga.tv/oembed-json/?vid=http://batanga.tv/look-de-famosas-helen-mirren-gloria-estefan-y-naomi-watts/”); then echo it, but it brings me nothing.
Any ideas why it ain’t working?