The multi-instrumentalist, who has toured with the Beach Boys star since 1998 and co-produced his solo albums, was convicted of rape by instrumentation and sexual battery in April (16), following a week-long trial in Claremore, Oklahoma.
Bennett, who has denied sexual intercourse occurred, was found guilty of raping a then-21-year-old woman at the Hard Rock Hotel & Casino in Tulsa, Oklahoma in December, 2014.
The alleged sexual assault was caught on surveillance cameras at the hotel.
On Tuesday (14Jun16), District Judge J. Dwayne Steidley sentenced Bennett, 51, to five years in jail and ordered him to register as a sex offender.
Despite the fact his attorney Shannon MCMurray admitted she wasn't surprised, she immediately filed a notice of appeal following the sentencing.
"I was certainly hopeful given the extensive information we put before the court on his history of being a really good person and this being an incident with two drunk people," she tells Billboard.
The judge has set a hearing for his motion for a new trial for 5 July (16), and ruled the surveillance video from the hotel will not be released to the public before that court date.
High-profile attorney Gloria Allred, who is currently defending Judy Huth in her sexual assault lawsuit against Bill Cosby, was also present for Bennett's sentencing, as she is serving as a private lawyer for the victim.
Allred says she is still considering all legal options against Bennett, stating, "The point was that she was vulnerable. He took advantage of that, and she was very brave. I just commend her for her courage."