The Pixies are on fire! Just a week after releasing their new video ‘Indie Cindy’, they performed two brand new songs at a surprise concert ahead of their forthcoming world tour. The two songs are “Blue Eyed Hexe” and “Green and Blues”, and you can see some fan footage of the band performing the songs here. This was their first live appearance together in almost two years, since November 2011, but fans need not worry:…