There is always a musician playing to crowds at Grand Central's lower subway entrance. It's a perfect place to play considering the acoustics are similar to one's bathroom shower. I haven't noticed a "bad" musician there ever. I wonder if you have to audition to claim a space in the subway. I know you have to apply for a permit. I'll check on that.
This amazing performer was playing a homemade electric violin to the background of pop songs such as Led Zeppelin's Kashmir and 50 Cent's In Da Club. You have to hear this guy. Would you like a $10 CD? I'll pick one up for you. Watch Lorenzo Laroc Perform at Grand Central.