He has performed as a live guest several times with the band during the [[Wave Goodbye Tour]] in 2009 and the [[Cold And Black And Infinite Tour]] in 2018. He guested in the studio on "[[Ripe (With Decay)]]", "[[The Way Out Is Through]]" and "[[Just Like You Imagined]]" from 1999's ''[[The Fragile (halo)|The Fragile]]''. He also appeared on "[[Just Like You]]" from the ''[[Gone Girl Soundtrack]]'' and co-wrote/performed "[[Trust In The Law]]" from Volume 02 of ''[[Watchmen (Music From The HBO Series)]]''.
In 2021 he accompanied [[Trent Reznor]] and [[Atticus Ross]] for covers of David Bowie's "[[Fantastic Voyage]]" and "[[Fashion]]" (with [[Mariqueen MaandigReznor]] on "Fashion") for [[2021/01/09_Los_Angeles,_CA|A Bowie Celebration: Just For One Day!]], and made an appearance on the Halsey outtake "People Disappear Here", which was produced by Reznor and Ross during the sessions for ''[[If I Can't Have Love, I Want Power]]''.[https://mikegarson.com/discography/if-i-cant-have-love-i-want-power-halsey/]
In a 2014 interview with allmusic.com[https://www.allmusic.com/blog/post/mike-garson], Garson revealed that he recorded parts for fifteen tracks on ''The Fragile'':