Kaki King (born Katherine Elizabeth King, August 24, 1979) is an American guitarist and composer. King is known for her percussive and jazz-tinged melodies, energetic live shows, use of multiple tunings on acoustic and lap steel guitar, and her diverse range in different genres. In February 2006, Rolling Stone released a list of "The New Guitar Gods", on which King was the sole woman and youngest artist (beating Derek Trucks in age by two months as the youngest on the list). In addition to a 10-year career that includes six LP and two EP albums, King has also scored music for television and film.

At the end of her tour for Legs to Make Us Longer in 2005, King departed from her previous musical direction out of a desire to escape being pigeonholed as a solo instrumental artist. She amicably parted ways with major label Sony/Epic and returned to her original label, Velour, to begin work on her third album ...Until We Felt Red. Released August 8, 2006, on Velour Records, the album features production work by Tortoise's John McEntire. With the prominence of electric guitar shoegazing and effect boxes on the new record, and the addition of a full band, the music website, The A.V. Club, called the sound a "post-rock makeover." She supported the album by going on tour with Sarah Bettens from K's Choice. In early 2007, Dave Grohl invited King to appear as a guitarist on the track "Ballad of the Beaconsfield Miners", a song penned by Grohl for an upcoming studio album by the Foo Fighters. King agreed and is credited on the album, entitled Echoes, Silence, Patience & Grace, released on September 25, 2007. On November 18, 2007, she joined Dave Grohl on stage to perform the track at the O2 arena in London. Grohl highly praised King's performance:  "There are some guitar players that are good and there are some guitar players that are really fucking good. And then there's Kaki King."  King toured with the Foo Fighters on the Australian leg of the Echoes, Silence, Patience and Grace tour. While on tour, King finished recording what became the Day Sleeper (Australian tour EP). It was released in late 2007 after King had finished working on August Rush, and with Eddie Vedder and Sean Penn on Into The Wild.

What track was she asked to be on?
on the track "Ballad of the Beaconsfield Miners", a song penned by Grohl for an upcoming studio album by the Foo Fighters.