Question: Are Ian Gillan and Ronnie Radke both lead singers in a band?

Context articles: Ian Gillan
Naked Thunder
Ronnie Radke
The Javelins
Toolbox (album)
Ian Gillan Band
Dying Is Your Latest Fashion
Ray Fenwick
Gillan's Inn
Joe Mennonna

Ian Gillan (born 19 August 1945) is an English singer and songwriter.
 He originally found commercial success as the lead singer and lyricist for Deep Purple.
Naked Thunder is a 1990 solo album by Ian Gillan, released soon after his departure from Deep Purple in 1989.
 It features a varied selection of songs, with one of Gillan's most passionate and impressive performances on power ballad "Loving on Borrowed Time" and traditional field lament "No More Cane on the Brazos".
 It was also the first album to feature Ian Gillan's long time writing partner Steve Morris.
 "Naked Thunder" was produced by Leif Mases and features a number of notable guest musicians, including drummer Simon Phillips and former Grease Band keyboard player Tommy Eyre.
Ronald Joseph Radke (born December 15, 1983) is an American singer, songwriter, entertainer, and record producer born in Las Vegas, Nevada.
 He is the founding member and current lead vocalist, keyboardist, and recently guitarist for the rock band Falling in Reverse, and is the former vocalist and founding member of post-hardcore band Escape the Fate.
The Javelins, sometimes also known as Ian Gillan & the Javelins, was a 1960s band fronted by Ian Gillan of Deep Purple.
 The band played live but never recorded in their initial spell together.
 The other members included rhythm guitarist Tony Tacon, bass player Tony Whitfield,drummer Keith Roach and lead guitarist Gordon Fairminer.
 All from Hayes/Heston area of West London.
Toolbox is the second solo album by Ian Gillan originally released only in Europe, Japan and Brazil on German label EastWest.
 It was Gillan's last album before his second comeback with Deep Purple in August 1992.
 The subsequent mammoth 10-month tour, which crossed Europe and South America, proved Ian Gillan to be a strong live attraction.
 Although "Toolbox" wasn't a big commercial success it is considered by many as one of Gillan's finest records.
 The album was finally released domestically in the USA in 1997.
The Ian Gillan Band were an English jazz-rock fusion band formed by Deep Purple singer Ian Gillan in 1975.
Dying Is Your Latest Fashion is the debut studio album by American rock band Escape the Fate, released on October 3, 2006 on Epitaph Records.
 The origin of the album's title comes from a line in the chorus of the song "Situations".
 It contains nine new songs plus two songs taken from "There's No Sympathy for the Dead".
 "Not Good Enough for Truth In Cliché" and "Situations" were released as singles, with music videos being made for both.
 It is the only full-length album and second release with original singer and founding member Ronnie Radke.
 Ronnie would later be incarcerated and kicked out of the band.
 He is currently the frontman for Falling in Reverse.
 It is also the last release to feature rhythm guitarist Omar Espinosa and keyboardist Carson Allen (although he was no longer in at the time).
 As of 2014 drummer Robert Ortiz is the only member still with the band as both Monte Money and Max Green had recently left the band in 2013 and 2014 respectively.
 Mandy Murders, who had in the past dated Ronnie Radke, modeled for the cover art.
Raymond John Fenwick (born 18 July 1946) is an English guitarist and session musician, best known for replacing Steve Howe in The Syndicats, and as the lead guitarist of Ian Gillan's post Deep Purple solo project, the Ian Gillan Band.
Gillan's Inn is an album by Ian Gillan in celebration of his 40 years as a singer.
 The first release was a DualDisc composed of both a CD and a DVD side.
 The CD featured re-recorded tracks from all eras of Ian Gillan's singing career.
 In a recent interview Gillan observed that, despite the number of participants and guest appearances, this was the easiest project he ever put together.
Joe Mennonna is an accomplished session musician who worked with Ian Gillan and Roger Glover on their 1988 album "Accidentally on Purpose", and toured with Ian Gillan in September 2006 in support of the "Gillan's Inn" album.
 He also appears on Gillan's "Live in Anaheim".