Question: Were both Jim Diamond and Paul Westerberg American?

Context articles: The Best of Jim Diamond
Swingin Party
Paul Westerberg
Besterberg: The Best of Paul Westerberg
The Replacements (band)
Jim Diamond (1988 album)
Don't You Know Who I Think I Was?
Stereo (Paul Westerberg album)
Jim Diamond (singer)
Jim Diamond (1993 album)

The Best of Jim Diamond is a compilation album of tracks from Scottish singer-songwriter Jim Diamond's first two solo albums "Double Crossed" and "Desire for Freedom", along with B-sides.
"Swingin Party" is a song written by Paul Westerberg and recorded by his band The Replacements for their fourth studio album "Tim" (1985).
 The song is an indie rock and rock and roll ballad with influences from jazz, country and new wave.
 Lyrically, it portrays the protagonist's "feigned nonchalance".
 It was well received by music critics, who praised Westerberg's songwriting talent.
 The song has been covered by other artists, notably Kindness in 2009 and Lorde in 2013.
Paul Harold Westerberg (born December 31, 1959) is an American musician, best known as the lead singer, guitarist and songwriter in The Replacements, one of the seminal alternative rock bands of the 1980s.
 He launched a solo career after the dissolution of that band.
 In recent years, he has cultivated a more independent-minded approach, primarily recording his music at home in his basement.
Besterberg: The Best of Paul Westerberg is a compilation album of recordings by Paul Westerberg.
The Replacements were an American rock band formed in Minneapolis, Minnesota, in 1979.
 Initially a punk rock band, they are considered pioneers of alternative rock.
 The band was composed of the guitarist and vocalist Paul Westerberg, guitarist Bob Stinson, bass guitarist Tommy Stinson and drummer Chris Mars for most of its career.
 Following several acclaimed albums, including "Let It Be" and "Tim", Bob Stinson left the band in 1986, and Slim Dunlap joined as lead guitarist.
 Steve Foley replaced Mars in 1990.
 Towards the end of the band's career, Westerberg exerted more control over the creative output.
 The group disbanded in 1991, with the members eventually pursuing various projects.
 A reunion was announced on October 3, 2012.
 The Replacements never had significant commercial success, except for "I'll Be You", which hit number 1 on the "Billboard" Alt Rock chart, but they influenced numerous alternative rock acts.
Jim Diamond is Singer/Songwriter Jim Diamond's self-titled and third studio album.
 Diamond was assisted by old friends Graham Lyle and Chris Parren, who had worked with him on previous albums.
Don't You Know Who I Think I Was?
 is a greatest hits album by the American rock band The Replacements, released in 2006 by Rhino Records.
 It includes eighteen tracks spanning the band's eight studio releases from 1981 to 1990, as well as two new tracks recorded specifically for this release.
 The new tracks—"Message to the Boys" and "Pool & Dive"—feature the three surviving original band members: singer and guitarist Paul Westerberg, bass guitarist Tommy Stinson, and drummer Chris Mars.
 However, Mars does not play drums on these tracks: they were played by session drummer Josh Freese while Mars sang backing vocals.
Stereo is the fourth solo album by Paul Westerberg.
 At this point in his career, the former Replacements leader was entering a new phase.
 He said goodbye to professional studios and big-name producers like Brendan O'Brien and Don Was, recording the album in his basement by himself.
 As detailed in the liner notes, Westerberg made no effort to fix imperfections like the tape running out in the middle of a song.
 "Stereo" was packaged with "Mono", which he credited to his Grandpaboy alter ego.
James Aaron Diamond (28 September 1951 – 8 October 2015) was a Scottish singer-songwriter, best known for his three Top 5 hits.
 The first was "I Won't Let You Down" (1982), as the lead singer in the trio PhD, with Tony Hymas and Simon Phillips.
 His solo performance, "I Should Have Known Better", was a United Kingdom No.1 in 1984.
 The third track was the theme song from "Boon", "Hi Ho Silver" which reached No.5 in the UK Singles Chart in 1986.
 He has also featured as a vocalist on the charity No.1s "You'll Never Walk Alone" with The Crowd and "Let It Be" with Ferry Aid.
 His last UK chart success was with "Young Love (Carry Me Away)" in 1986.
Jim Diamond was Jim Diamond's first studio album in five years (not to be confused with its identically-named 1988 predecessor).
 Featuring nine new songs and three re-recordings "Hi Ho Silver", "I Won't Let You Down" and "I Should Have Known Better".