Bestor was born in Waukesha, Wisconsin, and raised in Orem, Utah. His grandfather played trumpet in Tommy Dorsey's band and his great uncle played trombone in Jack Benny's band. He is a member of the The Church of Jesus Christ of Latter-day Saints (Mormon or LDS Church).
Bestor has released over a dozen CDs including several Christmas CDs. His Christmas concerts have become an annual Utah tradition since 1988. Bestor, in conjunction with Utah composer Sam Cardon, released a CD, Innovators, in 1995, and a sequel in 2001. Innovators contained probably his most famous song, Prayer of the Children which was written in memory of the children of Yugoslavia in light of the Yugoslav wars.
In addition, Bestor appears in the TV commercial "The Concert" which promotes encouragement and is sponsored by the Foundation for a Better Life. The commercial indicates it is based on a true story.
In 2005, Bestor began hosting a morning radio talk show, geared towards women, on KUTR 820 AM in Salt Lake City, Utah. He has also composed music introductions for numerous television programs, including Good Morning America and Monday Night Football.
Bestor is a National Advisor for ASCEND: A Humanitarian Alliance. This non-profit organization plans expeditions to African and South American countries to provide life skills mentoring with sustainable solutions in education, enterprise, health and simple technology.
Bestor studied music at Brigham Young University but did not graduate.