[2][3] Born in Oklahoma, Farmer developed an interest in singing from a young age, but was held back by her shyness before audiences.
Following her success in the competition, Farmer received coaching and assistance from other performers, allowing her to win additional contests over the next two years.
Farmer came to national attention when she appeared on Little Big Shots in 2016, but gained greater recognition and acclaim when she won the twelfth season of America's Got Talent the following year.
Ventriloquy coach Gary Owen was so impressed by Lynne's performance that he offered to serve as her trainer and business manager.
[8] Until she began homeschooling in eighth grade, Lynne attended Deer Creek Middle School near her home in Edmond, Oklahoma.
[6] In March 2016, Lynne made an appearance on Little Big Shots, singing "I Want to Be a Cowboy's Sweetheart" with her puppet Katie, a cowgirl.
[17] In November 2017, she made a guest appearance at a Terry Fator performance at the Hard Rock Hotel & Casino in Tulsa.
[22] Lynne appeared as part of the charity event One Night with the Stars at Madison Square Garden the following month.
[35] In December 2018, Lynne returned to both the Grand Ole Opry[36] and Pickler & Ben,[37] and voiced Daisy in an episode of Fancy Nancy.
Duets were performed with Lindsey Stirling, Toby Keith, Kristin Chenoweth, and Pentatonix and Hunter Hayes appeared as guests.
Also included was a sketch featuring the four America's Got Talent judges: Simon Cowell, Howie Mandel, Heidi Klum, and Mel B. Lonnie Chavis was the announcer for the special.
[41] She was brought back as a wild card act and performed "O mio babbino caro" with Petunia in the finals.
[42] During the results show, she and Bill Barretta performed "Can't Smile Without You", with Lynne singing as Edna and Baretta as Rowlf the Dog from The Muppets.
In August 2020, Lynne returned to America's Got Talent as a guest performer again, where she debuted her one-eyed Australian monster puppet Ivan.
[57] In April 2022, she appeared in the film A Cowgirl's Song alongside Cheryl Ladd, Savannah Lee May, and Jason Alan Smith.
[58] In July 2022, during season 17 of America's Got Talent, Simon Cowell shared his top 15 favorite Golden Buzzer moments in the show's history.
[59] The following month, Lynne and Terry Fator made guest appearances during the show's 17th-season finale, performing "Over the Rainbow" alongside Celia Muñoz, an object ventriloquist.
Lynne's success on America's Got Talent has been credited with helping return ventriloquism to the attention of the general public.
[66] Jay Johnson described her on his personal blog as "a wonderfully talented girl" with "near perfect" ventriloquism technique and "singing chops [that] could stand alone without the puppet assistance", whose "dedication to the art and ... young spirit will influence a generation of belly talkers to come".