Question: Lee Gi-kwang and Lukas Rossi were both what?

Context articles: Highlight (band)
Rock Star Supernova
Me Too, Flower!
Lukas Rossi
Lee Gi-kwang
Mrs. Cop
The Halo Method
Rock Star (TV series)
Circle (TV series)
Headspin (song)

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.
Rock Star Supernova was a reality television-formed supergroup consisting of drummer Tommy Lee (Mötley Crüe), bassist Jason Newsted (ex-Metallica), guitarist Gilby Clarke (ex-Guns N' Roses) and singer Lukas Rossi.
 The band was formed during the second season of the Rock Star Reality TV series which was called .
Me Too, Flower!
 () is a 2011 South Korean television series, starring Lee Ji-ah and Yoon Shi-yoon in lead roles, and a supporting cast led by Han Go-eun, Seo Hyo-rim, Jo Min-ki, and Lee Gi-kwang.
 It aired on MBC from November 9 to December 28, 2011 on Wednesdays and Thursdays at 21:55 for 15 episodes.
Lukas Rossi (born December 21, 1976) is a Canadian rock musician and was the winner of the CBS Television reality series "" - a televised audition contest to become lead singer of the hard rock supergroup "Rock Star Supernova".
Lee Gi-kwang (Korean: 이기광 ; born March 30, 1990), known professionally as Gikwang or Kikwang, is a South Korean singer-songwriter and actor.
 He originally debuted as solo singer with the stage name AJ (Ace Junior), releasing his first mini album "First Episode: A New Hero" on April 4, 2009.
 In October 2009, he debuted as the main dancer, visual and a lead vocalist of boy group BEAST which had been renamed to Highlight in February 2017.
Mrs. Cop () is a 2015 South Korean drama series starring Kim Hee-ae, Kim Min-jong, Lee Da-hee, Son Ho-jun, Heo Jung-do and Lee Gi-kwang.
 It aired on SBS on Mondays and Tuesdays at 21:55 for 18 episodes beginning 3 August 2015.
The Halo Method Is an American rock supergroup, formed in 2012 in Hollywood, California.
 It consisted of guitarist Ben Moody (We Are the Fallen, ex-Evanescence), drummer Miles McPherson, vocalist Lukas Rossi (ex-Rock Star Supernova, ex-Daylight Division) and bassist Josh Newell (ex-In This Moment).
Rock Star is a television series produced by Mark Burnett, David Goffin, and Lisa Hennessy in which aspiring singers from all around the world competed to become the lead singer of a featured group.
 It debuted on CBS on July 11, 2005, to mediocre ratings.
 The show was hosted by television personality and commercial spokeswoman Brooke Burke and Jane's Addiction & Red Hot Chili Peppers lead guitarist Dave Navarro.
 In Australian band INXS chose J.D. Fortune as their new lead singer.
 For , the band Rock Star Supernova chose Lukas Rossi as the lead singer of their new supergroup.
Circle () is a South Korean television series starring Yeo Jin-goo, Kim Kang-woo, Gong Seung-yeon, , , Lee Gi-kwang and .
 It is scheduled to air on tvN every Mondays and Tuesdays at 23:00 (KST) starting May 22, 2017.
"Headspin" is a song by unsigned Canadian band Rise Electric, which is fronted by "" winner Lukas Rossi.
 The song was released on Rock Star Supernova's self-titled debut album.
 It was released as the third single from the album in early 2007.
 Rossi performed "Headspin" three times while on "Rock Star: Supernova".
 Following the Rock Star Supernova tour Luke Rossi released an acoustic version of the song which is featured on his album "Love & Lust".