Question: What do both Michael Kiske and Terry McBride have in common?

full_context: Document 1: Randy Rogers Band: Randy Rogers Band is a country music group from the state of Texas. The band is composed of Randy Rogers (lead vocals), Geoffrey Hill (guitar), Jon Richardson (bass guitar), Brady Black (fiddle), and Les Lawless (drums). They have recorded seven studio albums and two live albums, and have charted seven singles on the "Billboard" Hot Country Songs charts.
Document 2: Michael Kiske: Michael Kiske (born January 24, 1968) is a German singer best known as the lead vocalist for the German power metal band Helloween. After his departure from the band, Kiske recorded four solo albums, participated on various metal and rock related projects, such as Avantasia, Place Vendome and Kiske/Somerville, while he also performed with numerous bands as a guest vocalist. In late 2009, he formed the hard rock / heavy metal band Unisonic and began touring again after 17 years of absence. On November 14, 2016 it was officially announced that Kiske will tour again with Helloween and Kai Hansen in 2017 and 2018.
Document 3: Andi Deris: Andreas "Andi" Deris (born 18 August 1964) is a German singer and songwriter, best known as the lead vocalist of power metal band Helloween, and co-founder and former lead singer of German melodic metal band Pink Cream 69. He has an active solo career, as well as his own recording studio in Tenerife.
Document 4: Klaus Meine: Klaus Meine (born 25 May 1948) is a German vocalist, best known as the lead singer of the hard rock band Scorpions. He and guitarist Rudolf Schenker are the only two members of the group to appear on every Scorpions album. Meine was placed at #22 on Hit Parader's Top Heavy Metal Vocalists of All Time list in 2006.
Document 5: McBride &amp; the Ride: McBride & the Ride was an American country music band initially composed of Terry McBride (lead vocals, bass guitar), Ray Herndon (background vocals, guitar), and Billy Thomas (background vocals, drums, percussion). The group was founded in 1989 through the assistance of record producer Tony Brown. McBride & the Ride's first three albums — "Burnin' Up the Road", the gold-certified "Sacred Ground", and "Hurry Sundown", released in 1991, 1992, and 1993, respectively — were all issued on MCA Nashville. These albums also produced several hits on the "Billboard" country charts, including the Top 5 hits "Sacred Ground" (their highest-peaking, at number 2), "Going Out of My Mind", "Just One Night", and "Love on the Loose, Heart on the Run".
Document 6: Kai Hansen: Kai Michael Hansen (born 17 January 1963) is a heavy metal guitarist and vocalist.
Document 7: Kiske/Somerville (album): Kiske/Somerville is the debut album of the melodic rock / heavy metal duet project Kiske/Somerville. The album features the collaboration of vocalist Michael Kiske (ex-Helloween, Unisonic, Place Vendome) with American singer Amanda Somerville (Aina, HDK, Trillium). The album was released on 24 September 2010 with cover art credited to Stanis W. Decker.
Document 8: Kiske/Somerville: Kiske/Somerville is a melodic heavy metal duet project, put together in late 2009 by Frontiers Records. The project features vocalist Michael Kiske (ex-Helloween, Unisonic, Place Vendome) collaborating with American singer Amanda Somerville (Aina, HDK, Trillium, Epica).
Document 9: Terry McBride &amp; the Ride: Terry McBride & the Ride is the fourth studio album recorded by American country music band McBride & the Ride. This album features a different lineup than other McBride & the Ride albums; it is also the only album they recorded under the name "Terry McBride & the Ride". "Been There", "Somebody Will", and "High Hopes and Empty Pockets" were all released as singles from this album, although none reached Top 40.
Document 10: Amarillo Sky (album): Amarillo Sky is the fifth and final studio album released by American country music trio McBride & the Ride. It was their first and only album after the reunion of the band's three original members (lead vocalist/bass guitarist Terry McBride, drummer Billy Thomas and guitarist Ray Herndon). The album produced three singles in "Anything That Touches You", "Squeeze Box" (originally recorded by The Who) and the title track. While "Anything That Touches You" peaked at #50 on the "Billboard" country charts, the latter two singles failed to chart.
Document 11: Unisonic (band): Unisonic is a German hard rock/power metal supergroup, founded in November 10, 2009 by former Helloween singer Michael Kiske alongside Dennis Ward and Kosta Zafiriou from Pink Cream 69 and Mandy Meyer, formerly in Asia and Gotthard. In 2011 the band was joined by Gamma Ray leader and Helloween co-founder, Kai Hansen.
Document 12: Tim Rushlow: Timothy Ray "Tim" Rushlow (born October 6, 1966) is an American country music artist. Between 1991 and 1997, Rushlow was lead vocalist of country music group Little Texas, which recorded four albums and a Greatest Hits package, in addition to charting more than fifteen singles on the "Billboard" country singles charts during Rushlow's tenure as lead vocalist.
Document 13: Terry McBride (musician): Terry McBride (born September 16, 1958 in Taylor, Texas) is an American country music artist. Between 1989 and 1994, and again from 2000 to 2002, McBride was the lead vocalist and bass guitarist in the band McBride & the Ride, a country music group which recorded six studio albums and charted more than ten singles on the "Billboard" Hot Country Songs charts. He is also the son of 1970s country singer Dale McBride.
Document 14: Dale McBride: Dale McBride (December 18, 1936 - November 30, 1992) was an American country music singer. In the 1970s, he charted several singles on the "Billboard" country charts, including two Top 40 hits on the Con Brio Records label. His son is Terry McBride, who fronted the 1990s country band McBride & the Ride and has written singles for Brooks & Dunn. Dale McBride died in 1992 of a brain tumor.
Document 15: Past in Different Ways: Past in Different Ways is the fourth solo album of vocalist Michael Kiske. It features acoustic renditions of songs written by Kiske during his time in Helloween and one new track. This came as a surprise to fans, considering Kiske's desire to leave the world of Helloween and heavy metal behind him.
ground_truth: singer