It's about time! North American Pokémon fans are finally able to get the 648th Pokémon, Meloetta, at participating Gamestop stores from March 4th onwards! Additionally, select EB Games in Canada start the event on March 9th. This marks the first time that Meloetta has been released outside of Japan, so collectors and Pokémon fans trying to complete their Pokédex will finally have access to the musical Pokémon. No word yet on when Meloetta will be made available in Europe and Australia, though.
You can receive Meloetta on Pokémon Black, Pokémon White, Pokémon Black 2 and Pokémon White 2. All you need to do is select Mystery Gift from the main menu, then Receive via Wireless while at a participating Gamestop store and you'll download the Wonder Card for Meloetta, which you can then pick up from the Pokémon Center by talking to the man in blue. Keep in mind that this event is still one month away, so you won't be able to receive it until then!
UPDATE: Added details about the event taking place in EB Games stores throughout Canada, starting March 9th.