Linda Ronstadt’s life in music is headed to the big screen…

The official trailer has been released for the documentary about the legendary 73-year-old half-Mexican American singer, “Linda Ronstadt: The Sound of My Voice.”

The feature documentary takes an insider’s look at one of the most successful recording acts of the 20th century.

“Linda cold literally sing anything,” longtime friend and occasional collaborator Dolly Parton says in the trailer. And how. Along with a long string of pop hits, the singer from Tucson, Arizona, has recorded and toured with such disparate styles as opera, jazz, and Mexican folk.

Ronstadt was 21 when she first hit the national charts with the Stone Poneys’ “Different Drum,” a song penned by Monkees’ Michael Nesmith. Her plaintive vocal leapt off the radio from the opening line, and the track just missed the BillboardTop 10. By the early ’70s, her backing band included Glenn Frey, Don Henley, Randy Meisnerand Bernie Leadon, who would go on be Eagles.

By the mid-’70s, Ronstadt was cranking out smash singles and multiplatinum albums as fast as the public could consume them. Three of her LPs hit No. 1 en route to her becoming the most successful female singer of the decade, selling out stadiums around the world.

Ronstadt, who also is part of the Kennedy Center Honors Class of 2019, also been an outspoken political advocate for causes like same-sex marriage and the inhumane treatment of undocumented immigrants, never shying away from fighting for what she believes both on and off the stage. She retired several years ago when Parkinson’s disease left her unable to sing.

Two-time Oscar winner Rob Epstein and Oscar nominee Jeffrey Friedman directed the doc from Greenwich Entertainment, 1091 and CNN Films.

Greenwich opens the doc on September 6.