Complex sentence: Greg Holden is a New York-based British singer-songwriter best known for his hit charity single "The Lost Boy" and for co-writing the critically acclaimed "Home", "American Idol"-winner Phillip Phillips' 2012 debut single.
Split into simpler sentences: Greg Holden is a New York-based British singer-songwriter. He is best known for his hit charity single "The Lost Boy" and for co-writing the critically acclaimed "Home", "American Idol"-winner Phillip Phillips' 2012 debut single.