Plants vs. Zombies is a video game franchise developed by PopCap Games a subsidiary of Electronic Arts (EA). The series follows the affiliates of David "Crazy Dave" Blazing as they use his plants to defend against a zombie invasion led by Dr. Edgar George Zomboss. The first game Plants vs. Zombies (2009) was developed and released by PopCap before its acquisition by EA. After PopCap Games's acquisition EA expanded the game into a franchise with games on many different platforms. On April 1 2009 PopCap released a music video for the song "Zombies on Your Lawn" by Laura Shigihara to promote Plants vs. Zombies. A PopCap spokesperson Garth Chouteau revealed in an IGN interview that Plants vs. Zombies would be released soon on PC and Mac. On April 22 2009 PopCap released an official game trailer of Plants vs. Zombies on YouTube. During the promotion of Plants vs. Zombies PopCap released a demo version of the game that could be played for thirty minutes. Plants vs. Zombies was officially released on May 5 2009 for PC and Mac by 2013 switching from a $2.99 gameplay cost to free-to-play on iOS and Android devices. Critics on mobile devices give the game an average of 4.3-4.8 star ratings.