Problem: Background: Mudvayne was an American heavy metal band from Peoria, Illinois formed in 1996. They are known for their sonic experimentation, innovative album art, face and body paint, masks and uniforms. The band has sold over six million records worldwide, including nearly three million in the United States. The group consisted of Chad Gray (lead vocals), Greg Tribbett (guitar, vocals), Ryan Martinie (bass guitar) and Matthew McDonough (drums).
Context: In 2003 Mudvayne participated in the Summer Sanitarium Tour, headlined by Metallica, and in September Chad Gray appeared on V Shape Mind's debut studio album Cul-De-Sac. The following year the band began work on its third album, produced by Dave Fortman. As for the previous album, Mudvayne withdrew to write songs; they moved into a house, writing the album in four months before recording began. In February Gray and Martinie expressed an interest in appearing on Within The Mind - In Homage To The Musical Legacy Of Chuck Schuldiner, a tribute to the founder of the metal band Death, but the album was never produced.  In 2005 Chad Gray established independent record label Bullygoat Records and Bloodsimple's debut album, A Cruel World (with a guest appearance by Gray), appeared in March. On April 12, Mudvayne released Lost and Found. The album's first single, "Happy?", featured complex guitar work and Gray described "Choices" as "the eight-minute opus".  In August former Mudvayne bassist Shawn Barclay released his band Sprung's debut album, mastered by King's X guitarist Ty Tabor. That month rumors spread that Bullygoat Records would release We Pay Our Debt Sometimes: A Tribute to Alice In Chains, with performances by Mudvayne, Cold, Audioslave, Breaking Benjamin, Static-X and the surviving members of Alice in Chains. A spokesperson for Alice in Chains told the press that the band was unaware of any tribute album, and Mudvayne's manager said that reports of the album were only rumors.  In September the band met with director Darren Lynn Bousman, whose film Saw II was in production and would include "Forget to Remember" from Lost and Found. Bousman showed them a scene of a man cutting his eye out of his skull to retrieve a key. When Gray told Bousman about the conversation at Bob's Big Boy two years earlier, Bousman said he holds his production meetings at the restaurant and Saw II was based on a screenplay he wrote years earlier. Gray appeared briefly in the film, and the music video for "Forget to Remember" contained clips from Saw II.
Question: Was their music part of a movie soundtrack?
Answer: In September the band met with director Darren Lynn Bousman, whose film Saw II was in production and would include "Forget to Remember" from Lost and Found.

Problem: Background: The Nitty Gritty Dirt Band, an American country rock band, has existed in various forms since its founding in Long Beach, California in 1966. The group's membership has had at least a dozen changes over the years, including a period from 1976 to 1981 when the band performed and recorded as the Dirt Band. Constant members since the early times are singer-guitarist Jeff Hanna and drummer Jimmie Fadden. Multi-instrumentalist John McEuen was with the band from 1966 to 1986 and returned during 2001 departing once again in November 2017.
Context: The Nitty Gritty Dirt Band was founded around 1966 in Long Beach, California by singer-guitarist Jeff Hanna and singer-songwriter guitarist Bruce Kunkel who had performed as the New Coast Two and later the Illegitimate Jug Band. Trying, in the words of the band's website, to "figure out how not to have to work for a living," Hanna and Kunkel joined informal jam sessions at McCabe's Guitar Shop in Long Beach. There they met a few other musicians: guitarist/washtub bassist Ralph Barr, guitarist-clarinetist Les Thompson, harmonicist and jug player Jimmie Fadden, and guitarist-vocalist Jackson Browne. As Nitty Gritty Dirt Band, the six men started as a jug band and adopted the burgeoning southern California folk rock musical style, playing in local clubs while wearing pinstripe suits and cowboy boots. Their first paying performance was at the Golden Bear in Huntington Beach, California.  Browne was in the band for only a few months before he left to concentrate on a solo career as a singer-songwriter. He was replaced by John McEuen on banjo, fiddle, mandolin, and steel guitar. McEuen's older brother, William, was the group's manager, and he helped the band get signed with Liberty Records, which released the group's debut album, The Nitty Gritty Dirt Band during 1967. The band's first single, "Buy for Me the Rain," was a Top 40 success, and the band gained exposure on The Tonight Show Starring Johnny Carson, as well as concerts with such disparate artists as Jack Benny and The Doors.  A second album, Ricochet, was released later during the year and was less successful than their first. Kunkel wanted the band to "go electric", and include more original material. Bruce left the group to form WordSalad and Of The People. He was replaced by multi-instrumentalist Chris Darrow.  By 1968, the band adopted electrical instruments anyway, and added drums. The first electric album, Rare Junk, was a commercial failure, as was their next, Alive.  The band continued to gain publicity, mainly as a novelty act, making an appearance in the 1968 film, For Singles Only, and a cameo appearance in the 1969 musical western film, Paint Your Wagon, performing "Hand Me Down That Can o' Beans". The band also played Carnegie Hall as an opening act for Bill Cosby and played in a jam session with Dizzy Gillespie.
Question: Did they perform on the Tonight show?
Answer:
gained exposure on The Tonight Show Starring Johnny Carson,