Question: Are Matt Heafy and Jonny Craig both American?

Context paragraphs:
Matt Heafy: Matthew "Matt" Kiichi Heafy (born January 26, 1986) is a Japanese American musician, best known as the guitarist and lead vocalist for the American heavy metal band Trivium.  Heafy is also the lead vocalist for the band Capharnaum, along with Trivium's former producer Jason Suecof.

Jonny Craig: Jonathan Monroe "Jonny" Craig (born March 26, 1986) is a Canadian-American singer and songwriter.  He is currently working as a solo musician.  He has been the lead vocalist for the bands Dance Gavin Dance, Emarosa, Ghost Runner on Third, Slaves, and westerHALTS.  As a solo artist, he has released one studio album, two EPs and a live album to date.  He was also a part of the supergroup Isles & Glaciers.  Craig possesses the vocal range of a baritenor and his distinct type of soul-based singing has earned him considerable acclaim.

A Gunshot to the Head of Trepidation: "A Gunshot to the Head of Trepidation", often referred to as "Gunshot", is a song by American heavy metal band Trivium.  Written by Matt Heafy and Corey Beaulieu, both of whom perform vocals and guitars on the track, it was featured on the band's second studio album "Ascendancy" in 2005.  The song was also released as a promotional single in May 2005, with an accompanying music video following in September.  "Gunshot" is often cited as one of the band's most popular songs, and has been performed at live shows consistently since its release.

Maximum Overload (DragonForce album): Maximum Overload is the sixth studio album by British power metal band DragonForce, which was released in Europe on 18 August 2014, and in North America the next day.  Japanese-American singer Matt Heafy (Trivium, Capharnaum) contributed vocals on 3 songs: "Defenders", "No More" and "The Game".

Trivium discography: The discography of American heavy metal band Trivium, consists of seven studio albums, one extended plays, twenty four singles, two promotional singles and eighteen music videos.  The band signed with German label Lifeforce Records and released their full-length debut studio album, "Ember to Inferno", in October 2003, with a lineup that included vocalist and guitarist Matt Heafy, bassist Brent Young, and drummer Travis Smith.

Matt Heafy Signature Dean Guitar: The Dean MKH is an electric guitar made by the guitar company, Dean Guitars.  It is a variation of the classic Dean ML, and this “newer” version was designed by Matt Heafy of the metal band, Trivium in 2008.  Originally Matt Heafy first tried to create an original body style when he was approached by Dean Guitars, and he also attempted to make a modified version of the ML body style but he did not like what he came up with because he stated whatever he tried it just turned out to like something that has already been done before, so he picked this body design because he loves the ML body shape.  And proof of this is that a lot of his guitars are the Dean ML body shape or altered versions of this guitar.  For example, the Dean Razorback which he has in multiple colors like his white with gold trimmed USA Dean Razorback and a couple of Dimebag Darrell's signature models as well, like the USA Dean Dime Explosion.

The Sin and the Sentence: The Sin and the Sentence is the upcoming eighth studio album by American heavy metal band Trivium.  It is scheduled to be released on October 20, 2017.  The album will be the first to feature fifth drummer Alex Bent (formerly of Battlecross and currently of Brain Drill and Dragonlord), who replaced drummer Paul Wandtke.  With the release of the album's title-track, this album would also mark the return of frontman Matt Heafy's screaming vocals, which were completely absent from the band's previous album "Silence in the Snow" due to an injury which caused Heafy to blow out his voice.

Roadrunner United: Roadrunner United was a project organized by the heavy metal record label Roadrunner Records to celebrate its 25th anniversary.  It culminated in an album released worldwide on October 11, 2005, entitled "The All-Star Sessions".  Four "team captains" were chosen to lead 57 artists from 45 past and present Roadrunner bands, and produce and oversee the album's 18 tracks: then (now former) Slipknot drummer Joey Jordison, Trivium frontman and guitarist Matt Heafy, Fear Factory guitarist Dino Cazares, and Machine Head frontman and guitarist Robb Flynn.  The unprecedented project was the brainchild of Roadrunner UK General Manager Mark Palmer and Roadrunner USA VP of A&R Monte Conner.  The album project was coordinated by Lora Richardson and was mixed by Colin Richardson and Andy Sneap.  "The All-Star Sessions" spawned one single and music video ("The End").  The DVD included with the CD purchase is a documentary of the "Making Of" the songs.  It features the sessions of the four team captains making their songs.

List of songs recorded by Trivium: Trivium is an American heavy metal band from Orlando, Florida.  Formed in 1999, the group changed personnel a number of times during its early years before settling as a trio featuring vocalist and guitarist Matt Heafy, bassist Brent Young and drummer Travis Smith.  After a pair of demos, the band released its debut studio album "Ember to Inferno" in 2003, the material for which was written by Heafy and Smith.  Guitarist Corey Beaulieu joined the band after the album's recording, and the following year Paolo Gregoletto replaced Young on bass.

List of Trivium band members: Trivium is an American heavy metal band from Orlando, Florida.  Formed in 1999, the group originally featured bassist and vocalist Brad Lewter, guitarist Jarred Bonaparte and drummer Travis Smith, all of whom were students at Lake Brantley High School.  Shortly after the band's formation, Matt Heafy was enlisted as lead guitarist by Lewter, after he saw him perform at a school talent show.  Lewter later left the band due to differing musical tastes from the other three members, after which Heafy took over on vocals.  Trivium subsequently became a four-piece with the addition of rhythm guitarist Brent Young, as Bonaparte moved over to the role of bassist.  Bonaparte would also later leave the group after choosing to attend college, with Richie Brown taking over temporarily.  After Brown's departure, Young took over on bass.

Supporting paragraphs: Matt Heafy Jonny Craig
Answer: yes