Katherine has a towering height as she measures five feet and nine inches tall. She has brown eyes. She is usually found in makeup. Till date there is no any information about her love affairs and boyfriend in the media. Her nationality is American and she has white ethnicity.
It is believed that Katherine has been singing since her young age. She is also active in YouTube posting cover songs. She is a talented pianist. In 2007, she posted a cover song of Party in the U.S.A with her sisters in YouTube. She was born and raised in a musical family; she joined the all-sister group Cimorelli at the age of 15. This group has been active posting songs since 2007. Their debut EP was released in 2008 and some of the hit songs of this EP are Singing My Song, On the Radio and so on. At the end of 2011, they released an EP titled CimFam. Their third EP was released in 2012. Cimorelli sisters have the net worth of $4.5 million.