Katelyn Tarver is an American actress. She is also a singer. She started her singing career when she competed on the reality show American Juniors in 2003. Two years later, she released her debut album Wonderful Crazy. In the 2010s, she started an acting career. She made her acting debut as Jo Taylor in the TV series Big Time Rush. At the same time, she also had a recurring role in the TV show No Ordinary Family. She also became known for her role as Mercedes in eight episodes of The Secret Life of the American Teenager. She next starred in the TV movie Dead on Campus. Her most recent work on the small screen was in the Freeform series Famous in Love.