We’ve had Prog-Rock revivalists (Radiohead) and Disco Punksters (Franz Ferdinand and hundreds of others), so what’s next? The next popular musical trend will be “Mother Polka,” – a combination of gangsta rap and accordion music – think Walter Ostanek meets Tupac Shakur. This trend, like the previous ones, will produce dozens of lame copycats and fizzle into obscurity within two years.