[2] King's debut studio album, Love Stuff (2015), was led by the single "Ex's & Oh's", which peaked within the top ten of the Billboard Hot 100 and was nominated for two Grammy Awards.

Her 2021 single, "Drunk (And I Don't Wanna Go Home)" (with Miranda Lambert), peaked within the chart's top 40 and preceded the release of her third album, Come Get Your Wife (2023).

She has also toured with acts such as Of Monsters and Men, Train, James Bay, The Chicks, Heart, Joan Jett, Michael Kiwanuka, and Miranda Lambert.

When she was nine, her stepfather, Justin Tesa,[7] gave her a record by all-female hard-rock band the Donnas; she views this as the pivotal moment when she decided she wanted to be a musician.

Around this time, she also started listening to the Runaways and Blondie, and she made her acting debut alongside her father in the movie Deuce Bigalow: Male Gigolo.

Upon graduating from Elisabeth Irwin High School/Little Red School House,[8] she moved to Philadelphia to enroll at the University of the Arts, studying painting and film.

[8] During these college years, she had an artistic epiphany seeing a live show where the band onstage used a banjo purely for accompaniment purposes, eschewing the bluegrass and country musical vocabulary traditionally associated with the instrument.

[2] King was spotlighted as an "Artist to Watch in 2012" by Esquire Magazine[11] and made television appearances on VH1 Big Morning Buzz Live and the Late Show with David Letterman.

[13] She toured with Of Monsters and Men, Train and Michael Kiwanuka and has opened for Dashboard Confessional, Dropkick Murphys, Dry the River, James Bay and Ed Sheeran.

[20] On March 6, 2017, she premiered a new single "Wild Love" featuring a sparse electronic production, marking a slight departure from her previous style in music.

[24][25] Throughout 2019, King served as a guest co-host on the MTV series Catfish: The TV Show opposite lead host Nev Schulman.

[30][31][32] According to The Guardian, King's musical style is "steeped in every genre of vintage Americana – sassy rock'n'roll, vampy R&B, country sadness and a little blues.

"[2] She cited Etta James, Aretha Franklin, Al Green, Otis Redding, Hank Williams, Johnny Cash and AC/DC as her musical influences.

[36] Ferguson was arrested on one count of felony domestic violence on April 23, 2017 in Los Angeles County, California and a divorce petition was filed on May 15, 2017.

She announced the pregnancy onstage during a Baby Daddy's Weekend tour stop in Tulsa, Oklahoma on September 22 and then shared the news on Instagram.

[46][47] In August 2024, King discussed her childhood and her relationship with her father Rob Schneider on an episode of Bunnie Xo's podcast Dumb Blonde.