Complex sentence: Kenneth John "Kenny" Ortega (born April 18,1950) is an American producer, director, and choreographer, best known for directing the "High School Musical trilogy" and Michael Jackson's "This Is It" concert tour.
Split into simpler sentences: Kenneth John "Kenny" Ortega (born April 18,1950) is an American producer, director, and choreographer. He is known for directing the "High School Musical trilogy" and Michael Jackson's "This Is It" concert tour.