These guys have been one of my favorite artists this past year. They are Hungarian and are featured on a lot of famous EDM podcasts/live sets around the world. I would say their general sound is vocal trance, but they are also known for really good mashups/remixes. Anyway, if I had to recommend one EDM artist to anyone, it would definitely be Myon and Shane 54.
Here’s an example of one of their mashups/remixes
Also they have a weekly podcast http://ms54.com/podcasts/