[9] In 2004, White-Gluz formed the Agonist (then known as "Tempest") with fellow band members Danny Marino and Chris Kells in Montreal, Quebec, Canada.

[11] White-Gluz was kicked out of The Agonist in the spring of 2014 after she was offered the role as vocalist for Arch Enemy and proposed her interest in working in both bands at once.

)[citation needed] White-Gluz signed a deal with Napalm Records in 2016 to release a solo album entitled Alissa.

[19] At the Denver show on 28 September 2012, White-Gluz and Elize Ryd performed the Nightwish lead vocals live on stage with minimal preparation after Anette Olzon was taken ill.[20][21] White-Gluz, Ryd and Tommy Karevik later joined Nightwish (now fronted by Floor Jansen) on stage again to sing the final song of the tour, "Last Ride of the Day", in Orlando on 14 October 2012.

[22] Arch Enemy, with White-Gluz as lead vocalist, joined Nightwish as a supporting act on their 2015 European tour.

[23] In February 2014, the Dutch symphonic metal band Delain announced that White-Gluz would be contributing guest vocals to their fourth studio album The Human Contradiction.

[24] White-Gluz made a second guest appearance with Delain in 2016 on "Hands of Gold", the opening track of their fifth studio album Moonbathers.

[29] White-Gluz recorded guest vocals for the American deathcore act, Carnifex, on the song "No Light Shall Save Us", which is on the band's seventh studio album, World War X.

In 2022, she recorded guest vocals for the video game Metal: Hellsinger and published a song with Nita Strauss called "The Wolf You Feed".

[33] White-Gluz has been in a relationship with Doyle Wolfgang von Frankenstein since 2014, the guitarist of American horror punk band Misfits.

On Nirvana's live album for example I love hearing the out-of-tune guitars and the cracks in the voice", White-Gluz said in an interview with Metal Hammer.