Question: Are David Lee Roth and Yang Yo-seob both singers?

Context articles: Your Filthy Little Mouth
The David Lee Roth Band
Around Us Entertainment
Highlight (band)
Yang Yo-seob
Crazy from the Heat (book)
The David Lee Roth Show
Yankee Rose (song)
David Lee Roth discography
David Lee Roth

Your Filthy Little Mouth is the fourth full-length studio LP by David Lee Roth, the lead singer of the American rock band Van Halen.
 Released in 1994 by Warner Brothers-Reprise and produced by Nile Rodgers (producer of albums by David Bowie, Madonna, et cetera), "Your Filthy Little Mouth" explores relatively disparate genres of popular music, but contextualizes them via rock and blues.
 The album reflects Roth's growing fascinations with literature and philosophy, as well as his experiences living in New York City's Lower East Side during the early 1990s.
 The album's artwork, based conceptually on tattoo art and graffiti art, is executed by Roth.
The David Lee Roth Band was an American rock and roll band, formed in Pasadena, California in 1985 by Van Halen frontman David Lee Roth.
 Originally featuring a supergroup line-up of guitarist Steve Vai, bassist Billy Sheehan, and drummer Gregg Bissonette, the band released numerous popular songs and albums from the mid-1980s until the late 1990s.
 Other well-known musicians in the David Lee Roth Band have include guitarist Jason Becker, guitarist Steve Hunter, guitarist John 5 (guitarist), bassist Matt Bissonette drummer Ray Luzier, and keyboardist Brett Tuggle.
 The band's well-known songs include "Yankee Rose", "Goin' Crazy!"
, "Shy Boy", "Just Like Paradise", "Stand Up", "Damn Good", "A Little Ain't Enough", "She's My Machine", and "Slam Dunk!"
Around Us Entertainment is a South Korean independent entertainment company established by Yoon Doo-joon, Yang Yo-seob, Yong Jun-hyung, Lee Gi-kwang, Son Dong-woon from boy group Highlight, formerly known as BEAST, after leaving their former label Cube Entertainment.
Highlight (Korean: 하이라이트 ) is a South Korean boy band formerly known as Beast (Korean: 비스트).
 The band consists of five members: Yoon Doo-joon, Yong Jun-hyung, Yang Yo-seob, Lee Gi-kwang, and Son Dong-woon.
 Original member Jang Hyun-seung officially left the group in April 2016.
 Later that year, the five remaining members moved labels from Cube Entertainment to Around Us Entertainment and subsequently changed their name to Highlight in 2017.
Yang Yo-seob (born January 5, 1990), more commonly known as Yoseob, is a South Korean singer and musical actor.
 He is the main vocalist of the boy group Highlight.
Crazy from the Heat is the autobiography of Van Halen lead vocalist and successful solo artist David Lee Roth.
 The book published in 1998 shares its name with Roth's debut release as a solo artist 1985's "Crazy from the Heat" EP.
 The cover of the book shows Roth returning to the scene where the artwork for the EP was taken and striking a different pose, this time with a woman in his arms.
The David Lee Roth Show is a former short-lived American radio show that aired from January 3 to April 21, 2006, hosted by rock musician David Lee Roth.
 It was the replacement of "The Howard Stern Show" following its departure from terrestrial to Sirius Satellite Radio.
 It was simulcast on seven stations across the United States owned by CBS Radio, who launched the show as part of its Free FM radio format.
 Notably different from Howard Stern's program, or corporate "morning zoo" and "shock jock" formats which dominated morning radio at the time, Roth's show sounded similar to pirate radio, featuring ethnic and non-commercial rock music integrated with personal stories, occasionally uncomfortable debates on intellectual matters, and interviews with people Roth admired, such as guitarist Brian May, baseball player Johnny Damon, and Roth's uncle, Manny Roth.
"Yankee Rose" is a hard rock song recorded by David Lee Roth.
 It was written by Roth and Steve Vai and was Roth's first single on his 1986 first full-length album "Eat 'Em and Smile".
 It was recorded as a tribute to the Statue of Liberty in New York City, as the statue was completing a major renovation for the 100th anniversary of its dedication in 1886.
David Lee Roth is an American rock music singer.
 His discography consists of six studio albums, one extended play, one compilation album, and twenty singles.
 Of his eight albums, four have been certified Gold or higher by the Recording Industry Association of America. "
Eat 'Em and Smile", "Skyscraper" and "Crazy from the Heat" are certified Platinum, and "A Little Ain't Enough" is certified Gold.
 As of 2012, all of David Lee Roth's Warner Brothers LPs are due for recertification.
David Lee Roth (born October 10, 1954) is an American rock vocalist, musician, songwriter, actor, author, and former radio personality.
 In 2007, he was inducted into the Rock and Roll Hall of Fame.