You don't need to be plugged in to generate electricity, saysTIME music critic Christopher John Farley, and the new installments ofMTV's almost-all-acoustic showcaseprove it. The picks of the new crop: Courtney Love's band Hole, the Cranberries and Live. All air in April. "They're all worth watching," says Farley. "The show's just been getting better and better. It's really established itself as a proving ground for a good group of rockers."