Complex sentence: His change of hairstyle in 2010, and the consequent alterations to Bieber products, led to it being called "the most expensive musical haircut of all time"; one company spent $100,000 to fix its dolls for the 2011 Christmas season.
Split into simpler sentences: His change of hairstyle in 2010, and the consequent alterations to Bieber products, led to it being called "the most expensive musical haircut of all time". One company spent $100,000 to fix its dolls for the 2011 Christmas season.