Question: This One's for the Children had lead vocals by the singer and songwriter of what nationality?

Context:
Restless Heart
Restless Heart is an American country music band established in 1984.
 The band's longest-lasting lineup has consisted of Larry Stewart (lead vocals), John Dittrich (drums, background vocals), Paul Gregg (bass guitar, background vocals), Dave Innis (piano, keyboards, rhythm guitar, background vocals), and Greg Jennings (lead guitar, mandolin, background vocals).
 Verlon Thompson was the band's original lead singer, but he was replaced by Stewart before the band signed to RCA Records Nashville.
 Stewart departed for a solo career in 1992; during this time, Innis, Gregg, and Dittrich alternated as lead vocalists, until Innis also left.
 The band was on hiatus from 1994 to 1998.
 During this hiatus, Dittrich briefly recorded as one-third of The Buffalo Club, and Jennings joined Vince Gill's road band.
 Stewart, Gregg, Dittrich, and Jennings reunited briefly in 1998 to record new material for a greatest hits album; they, along with Innis, reunited again in 2004, and this lineup has remained ever since.
Land of the Free (Gamma Ray album)
Land of the Free is the fourth studio album by German power metal band Gamma Ray, released in 1995.
 Continuing a trend that would conclude with the band's fifth studio release, the lineup for the album was different from the previous one, as "Land of the Free" was the first Gamma Ray album to be released since the departure of Ralf Scheepers, leaving Kai Hansen to take up lead vocals.
 While not his first stint as a vocalist (Hansen had sung lead for Helloween until 1987 and had also recorded lead vocals on "Heal Me" from "Insanity and Genius"), it would be the first time he had performed lead vocals exclusively in 8 years.
The Move
The Move are a British rock band of the late 1960s and the early 1970s.
 They scored nine Top 20 UK singles in five years, but were among the most popular British bands not to find any real success in the United States.
 Although bassist-vocalist Chris "Ace" Kefford was the original leader, for most of their career the Move was led by guitarist, singer and songwriter Roy Wood.
 He wrote all the group's UK singles and, from 1968, also sang lead vocals on many songs, although Carl Wayne was the main lead singer up to 1970.
 Initially, the band had 4 main vocalists (Wayne, Wood, Trevor Burton and Kefford) who split the lead vocals on a number of their earlier songs.
Shenandoah (band)
Shenandoah is an American country music group founded in Muscle Shoals, Alabama in 1984 by Marty Raybon (lead vocals, acoustic guitar), Ralph Ezell (bass guitar, backing vocals), Stan Thorn (keyboards, backing vocals), Jim Seales (lead guitar, backing vocals), and Mike McGuire (drums, background vocals).
 Thorn and Ezell left the band in the mid-1990s, with Rocky Thacker taking over on bass guitar; Keyboardist Stan Munsey joined the line up in 1995.
 The band split up in 1997 after Raybon left.
 Seales, Munsey, Thacker and McGuire reformed the band in 2000 with lead singer Brent Lamb, who was in turn replaced by Curtis Wright and then by Jimmy Yeary.
 Ezell rejoined in the early 2000s, and after his 2007 death, he was replaced by Mike Folsom.
 Raybon returned to the band in 2014.
 That same year, Jamie Michael replaced the retiring Jim Seales on lead guitar.
Eagles (band)
The Eagles are an American rock band formed in Los Angeles in 1971.
 The founding members were Glenn Frey (lead guitar, lead vocals), Don Henley (drums, lead vocals), Bernie Leadon (guitars, vocals) and Randy Meisner (bass guitar, vocals).
 With five number-one singles, six Grammy Awards, five American Music Awards, and six number one albums, the Eagles were one of the most successful musical acts of the 1970s.
 At the end of the 20th century, two of their albums, "Their Greatest Hits (1971–1975)" and "Hotel California", were ranked among the 20 best-selling albums in the United States according to the Recording Industry Association of America.
 "Hotel California" is ranked 37th in "Rolling Stone"' s list of "The 500 Greatest Albums of All Time" and the band was ranked number 75 on the magazine's 2004 list of the 100 Greatest Artists of All Time.
Venus Mars Project
Venus Mars Project is an American pop/rock duet from Boston, Massachusetts known for their mix of classic rock edge and modern pop.
 The band consists of two members: Jacyn Tremblay (lead vocals) and Peter Tentindo (lead guitar, vocals).
 Jacyn is a singer/songwriter, formerly signed with Universal Motown Records as part of the Boston-based female pop/r&b vocal group Jada, and Peter is a professional guitarist, singer/songwriter, and teacher, formerly backing the lead singer of Survivor, Jimi Jamison.
This One's for the Children
"This One's for the Children" is a 1989 single from New Kids on the Block.
 The lead vocals were sung by Jordan Knight and Donnie Wahlberg.
 Taken from the group's holiday album, "Merry, Merry Christmas", the single peaked at #7 on the "Billboard" Hot 100 in December 1989, and #9 on the UK singles chart in December 1990.
Mystery (band)
Mystery (often stylized as MYSTERY) is a Canadian rock band formed in 1986 by multi-instrumentalist Michel St-Père.
 The band released their eponymous debut EP in 1992 with Raymond and Gary Savoie on lead vocals, followed by their first album "Theatre of the Mind" in 1996 and "Destiny?
" in 1998, both with Gary on lead vocals.
 In 2007 the band released their third album "Beneath the Veil of Winter's Face" with singer Benoît David who would record two more studio albums with the band: "One Among the Living" in 2010 and "The World is a Game" in 2012.
 On November 1, 2015 the band released their sixth album "Delusion Rain" with current singer Jean Pageau.
Lonestar
Lonestar is an American country music group consisting of Richie McDonald (lead vocals, acoustic guitar), Michael Britt (lead guitar, background vocals), Dean Sams (keyboards, background vocals) and Keech Rainwater (drums, percussion).
 Before the group's foundation in 1992, both Rainwater and Britt were members of the group Canyon.
 John Rich (bass guitar, lead and background vocals) was a member until he left in 1998, and later became one half of the duo Big & Rich, as well as a Nashville songwriter and record producer.
 Between 2007 and 2011, McDonald exited the band for a solo career, with former McAlyster lead singer Cody Collins replacing him until McDonald rejoined.
Donnie Wahlberg
Donald Edmond Wahlberg Jr. (born August 17, 1969) is an American singer, songwriter, actor, record producer, and film producer.
 He is a founding member of the boy band New Kids on the Block.
 Outside of music, he has had roles in the "Saw" films, "The Sixth Sense", "Dreamcatcher", and "Righteous Kill", also appearing in the World War II miniseries "Band of Brothers" as First Lieutenant Carwood Lipton.
 From 2002 to 2003, he starred in the crime drama "Boomtown".
 He has been starring in the drama series "Blue Bloods" as Danny Reagan with Tom Selleck (his TV father) and Bridget Moynahan (his TV sister) since 2010, and since 2014 is an executive producer of the TNT reality television show "Boston's Finest".
 He was nominated for "Choice Scream" at the 2008 Teen Choice Awards for his work in the "Saw" films.
 He has also produced and starred in "Rock this Boat", "Donnie Loves Jenny" and "Return of the Mac" on Pop TV.
 He also produces and stars in "Wahlburgers" on A&E TV.

Answer: American