Lou grew up in a small town in the Ozark mountains of Arkansas. She was called into the music ministry at age 17 and pursued a piano performance degree at Oklahoma Baptist University. Midway, she transferred to the University of California at Santa Barbara.
While in California, she married Kevin and together they have one son, Cameron.
In addition to Arkansas and California, the Mehles have lived in Pennsylvania and Texas where Lou has served in various positions in church ministry.
Lou loves cooking, fast cars, movies, playing games, and going to the Hollywood Bowl.