Katelyn Tarver (born November 2, 1989 in Glennville, Georgia, USA) is a actress and singer/songwriter.

She is known for her roles of Jo Taylor on the hit Nick show Big Time Rush and Natalie on the hit ABC show No Ordinary Family. Katelyn is a native of Glennville, Georgia.

She came to fame in 2003 as an American Idol spinoff American Juniors finalist and released her debut album Wonderful Crazy in 2005 by an independent record label, TC Music. She is also a model, represented by Wilhelmina Models & modeled for such magazines as COSMOgirl! and Teen People.

Katelyn is the daughter of Kenny and Kim Tarver. She has an older brother, Drew, a younger sister, Amanda, and a younger brother Jake. Drew works alongside Katelyn for the Cambio short shows and Cambio Connect.


On January 29, 2010, she made her acting debut on Big Time Rush as Jo, a girl which the boys have a crush on. Her first episode was "Big Time Love Song" which aired on February 5, 2010.

She starts gaining a big time crush on Kendall Knight (Kendall Schmidt) & after a while, they start dating. Everything had changed since the worldwide tour started; Jo became a famous TV star and Kendall is a pop star.