There are multiple artists with the name A2.
1.) Mona Lisa Overdrive formerly known as A2.
A gripping new mix of “80’s New Wave" meets "Modern Electronica". A2 is sure to grab your heart with their cool modern sounds, atmospheric guitars, and deeply emotional vocal style. They are currently unsigned...but you can find their tracks all over the web...as well as on Sega's "Shadow The Hedgehog" Game and the Shadow soundtrack ("Lost and Found").
2.) A grime producer from London.