Complex sentence: Nasher is an avid mentalist and regularly performs at "The Magic Castle" in Hollywood, California, has performed in the show "Manhattan Magic" on Times Square in New York City in 2009.
Split into simpler sentences: Nasher is an avid mentalist and regularly performs at "The Magic Castle" in Hollywood, California. He has performed in the show "Manhattan Magic" on Times Square in New York City in 2009.