"Toby has been the gold standard of songwriting in the modern era of Country music," said BMI's Clay Bradley.
The Oct. 12 event will include congratulatory video tributes from Reba McEntire, Rob Thomas, Diane Warren, and more.
Kane Brown, Luke Combs, Walker Hayes, Alan Jackson and more will also be honored during the upcoming 'CMT Artists of the Year' special.
Will a woman win entertainer of the year for the first time in over a decade?
Latto’s “Big Energy,” which reached No. 3 on the Billboard Hot 100, won song of the year.
Lynn received several lifetime achievement awards and was voted into both the Country Music Hall of Fame and Songwriters Hall of Fame.
In December 2015, the Queen of Country talked with Billboard about making music, having babies and Donald Trump.
The show will include a tribute to three jazz musicians who died this year -- Joey DeFrancesco, Ramsey Lewis and Pharoah Sanders.
Ellie Goulding received the BMI President's Award. Global breakout star Tems received the BMI Impact Award.