Question: Are both Mark King and Chad Smith from the same nationality?

Context articles: Thrive (film)
Chad Smith
Mark King (musician)
The 8G Band
Nathan King (musician)
Chad Smith's Bombastic Meatbats
Chickenfoot
Tracie (song)
Two Hearts Collide
Gizmodrome

Thrive is a 2015 short documentary film about Matthew Whitaker, a piano prodigy who has been blind since birth.
 The film was directed and produced by Paul Szynol and has played at festivals worldwide, including North America, Europe, and Asia.
 The film includes appearances by Jonathan Batiste, Dr Lonnie Smith, and Chad Smith.
Chadwick Gaylord Smith (born October 25, 1961) is an American musician and the current drummer of the Red Hot Chili Peppers, which he joined in 1988.
 The group was inducted into the Rock and Roll Hall of Fame in 2012.
 Smith is also the drummer of the hard rock supergroup Chickenfoot, formed in 2008, and is currently the all-instrumental outfit Chad Smith's Bombastic Meatbats, who formed in 2007.
 As one of the most highly sought-after drummers, Smith has recorded with Glenn Hughes, Johnny Cash, John Fogerty, The Dixie Chicks, Jennifer Nettles, Kid Rock, Jake Bugg, and The Avett Brothers.
 In 2010, joined by Dick Van Dyke and Leslie Bixler, he released "Rhythm Train", a critically acclaimed children's album which featured Smith singing and playing various instruments.
Mark King (born 20 October 1958) is an English musician.
 He is most famous for being the lead singer and bassist of the band Level 42.
 King is known for his slap style of playing the bass guitar, with MusicRadar describing him as "the guy who put the slap in pop during the 80s".
 He won the "Outer Limits" award at the 2017 Progressive Music Awards.
The 8G Band is the house band for "Late Night with Seth Meyers".
 The band is led by "Saturday Night Live" alumnus Fred Armisen.
 He assembled the 8G Band, named for the studio where the show is taped, just two weeks before the test show.
 He texted friends Seth Jabour, Syd Butler and Eli Janney ("What are you guys doing this week?")
, then found first drummer Kimberly Thompson through an audition.
 Guitarist Marnie Stern later joined as well.
 After Thompson left the band, guest musicians frequently sit in often for an entire week.
 Some notable names to sit in on the drum kit include: Patrick Carney, Chad Smith, David Lovering, Kenny Aronoff, Jon Theodore, Nicko McBrain, Matt Sorum, Brad Wilk, Darren King, Danny Carey, Abe Cunningham, Dave Lombardo, Brann Dailor, Jimmy Chamberlin, Matt Cameron, and Abe Laboriel Jr. as well as other guest musicians.
 Additionally singer, guitarist: J Mascis, Bob Mould and others have also sat in with the band.
Nathan King (born 29 August 1970), is an English musician, in three notable bands, Level 42, and Frost*, as well as It Bites.
 He is the younger brother of Level 42's Mark King.
Chad Smith's Bombastic Meatbats is an American instrumental funk rock band from Los Angeles, California.
 It consists of Red Hot Chili Peppers' drummer Chad Smith, guitarist Jeff Kollman (from Cosmosquad), bassist Kevin Chown (Uncle Kracker, Tarja Turunen), and Ed Roth (Ronnie Montrose, Gamma).
Chickenfoot is a rock supergroup formed in 2008.
 The group consists of vocalist Sammy Hagar (ex–Van Halen and Montrose), bassist Michael Anthony (also ex–Van Halen), guitarist Joe Satriani, and drummer Chad Smith (Red Hot Chili Peppers).
 Due to consistent recording and touring commitments to the Red Hot Chili Peppers, Kenny Aronoff joined the group in 2011 as a touring replacement for Smith.
 While the band has not formally announced a breakup, in June 2016 Smith said that he had doubts about the band touring or recording again due to the busy schedule of each band member.
"Tracie" is a song by British band Level 42, written by Gary Husband and Mark King, and recounts King's times with his childhood sweetheart, Tracie Wilson.
 It appeared on the band's 1988 album "Staring at the Sun", and features keyboardist Mike Lindup playing harmonica.
"Two Hearts Collide" is a pop/romantic song released in 1988, in the studio album "Staring at the Sun", by the British musical group Level 42.
 It was written by Mark King and Boon Gould, that had already abandoned the band.
 It was not well received by critics in the beginning, as almost all of the music of the album "Staring at the Sun", in spite of this, was well received by the fans of the band.
 This song is in the compilation released in 1998 "Turn It On".
 The lead vocals are by Mark King.
Gizmodrome is a rock supergroup formed in Italy in 2017.
 The four-piece band consists of Police drummer Stewart Copeland, Level 42 bassist Mark King, Italian keyboardist Vittorio Cosma, and guitarist Adrian Belew who played for King Crimson, the Talking Heads and many others.
 The group's debut album, "Gizmodrome", was released on September 15, 2017.
 The album was recorded in Milan in over two weeks in Summer 2016 and Spring 2017.