Question: Are both Zakk Wylde and Seohyun both singers actors/actresses?

Context articles: Black Rain (Ozzy Osbourne album)
Black Utopia
Zakk Wylde
Seohyun
Pride and Glory (album)
Zakk Wylde discography
Pride and Glory (band)
Nick Catanese
Johnne Sambataro
Book of Shadows II

Black Rain is the tenth studio album by British heavy metal vocalist Ozzy Osbourne, released 22 May 2007 on Epic Records.
 It is also the last album to feature Zakk Wylde and Mike Bordin, and the first to feature bassist Rob Nicholson.
 "Black Rain" debuted at No. 3 on the US "Billboard" 200, selling about 152,000 copies in its first week; making it Osbourne's highest debut to date.
 As of 29 September 2007, the album had sold 406,053 copies in the US, and had been certified Gold.
Black Utopia is the third solo album by keyboard player Derek Sherinian.
 In addition to the returning members Zakk Wylde, Simon Phillips and Steve Lukather, three new musicians joined Sherinian: bass guitarist Billy Sheehan and guitarists Yngwie Malmsteen – with whom Sherinian had toured in 2001 – and Al Di Meola.
 "One of the highlights of my career was flying to Miami to produce Yngwie, and the next day Al Di Meola - all for my record!"
 The song "Axis Of Evil", (co-written with KISS drummer Eric Singer), has Zakk Wylde and Yngwie Malmsteen in a guitar duel.
 "Black Utopia" was the beginning of an ongoing collaboration with drummer Brian Tichy, and album cover artist Mattias Noren.
 "Black Utopia" is Sherinian's best selling solo record to date.
Zakk Wylde (born Jeffrey Phillip Wielandt on January 14, 1967) is an American musician, singer, songwriter, multi-instrumentalist and occasional actor who is best known as the guitarist for Ozzy Osbourne, and founder of the heavy metal band Black Label Society.
 His signature bulls-eye design appears on many of his guitars and is widely recognized.
 He was the lead guitarist and vocalist in Pride & Glory, who released one self-titled album in 1994 before disbanding.
 As a solo artist he released "Book of Shadows" and "Book of Shadows II".
Seo Ju-hyun (born June 28, 1991), known professionally as Seohyun, is a South Korean singer and actress.
 She debuted as a member of girl group Girls' Generation (and later its subgroup TTS) in August 2007, who went on to be one of the best-selling artists in South Korea and one of South Korea's most popular girl groups worldwide.
 Apart from her group's activities, she has established herself as an actress, notably through her participation in the original and Korean versions of stage musicals including "Moon Embracing the Sun", "Gone with the Wind" and "Mamma Mia".
 She also starred in the drama "".
 She debuted as a solo artist with her debut mini album, "Don't Say No", on January 17, 2017, making her the third Girls' Generation member to debut as a solo artist.
Pride and Glory is Zakk Wylde's first self-fronted album.
 It has more of a Southern rock sound than Zakk Wylde's other albums incorporating the likes of banjo, harmonica and mandolin.
The following are albums and appearances by Zakk Wylde, guitarist for Ozzy Osbourne, of Black Label Society, and lead guitarist and vocalist in Pride & Glory.
 Wylde has released two solo albums; "Book of Shadows" in 1996 and "Book of Shadows II" in 2016.
Pride and Glory was a side project for Black Label Society guitarist Zakk Wylde.
 This was Wylde's first self-fronted project, before releasing his first solo-album, "Book of Shadows", in 1996.
 After that he formed Black Label Society in 1998, which remains his current band.
Nick Catanese (born June 2, 1971) is the former rhythm guitarist for Black Label Society.
 He supported lead player Zakk Wylde, who has commented that "If I'm Keith Richards, he's Mick Taylor".
 Nicknamed "The Evil Twin" for his capability to keep up with Zakk Wylde, Nick joined with him when he noticed Wylde's email address in a magazine, and on a whim told Zakk that if he ever needed a guitar player to let him know.
 Zakk had been discussing with his wife about getting a second guitarist that very day, then got back to Nick, the two met up and jammed and Nick joined Zakk on the Book of Shadows tour (Wylde's solo album).
 When Zakk was looking to form a band in 1998, Nick recommended drummer Phil Ondich to Zakk, "Sonic Brew" was recorded, and in 1999, John DeServio was added to the lineup on bass – Black Label Society was officially formed.
 Phil was eventually replaced by Craig Nunenmacher, and several bassists (Steve Gibb, Mike Inez, Robert Trujillo, and James Lomenzo) replaced JD until he ultimately returned to the band in October 2005.
 Nick left Black Label Society in December 2013.
Johnne "John" Sambataro (born on August 27, 1953, in South Florida) is an American rock musician.
 In 1975 he began working as a session vocalist & musician at Criteria Recording Studios in Miami, where he met & worked with Andy Gibb, Barry Gibb, Stephen Stills, Eric Clapton, Peter Frampton, Teri DeSario, Meat Loaf, John Parr, Coverdale and Page, Zakk Wylde & many others.
Book of Shadows II is the second solo studio album by American musician Zakk Wylde.
 The album was released on April 8, 2016, by Entertainment One Music.