Jacob was born and grew up in San Diego, California.  He is the only person in his family that decided not to attend college.  He persuaded his family to let him pursue his musical dream.  Jacob grew up participating in theater and has been playing the guitar for most of his life.  He is not only a strong singer, but also a gifted song writer.  Jacob co-wrote "American Game," with Dan and contributed to "Take Me Under."  Jacob adds a rock feel and an intense focus to O-town. 

Jacob's full name is Jacob Underwood.  He is 22 years old.  His birthday is April 25, 1980.  His hometown is San Diego, California.  His astrological sign is Taurus.  He is 5 feet 10 inches tall.  Jacob has brown hair and blue eyes.  His mother's name is Michele Underwood and his father's name is Steve Underwood.  His sister's name is Danielle and his brother's name is Bryan.  Jacob has a dog Marble and a monkey Abbey.