Wow I found my old post on here and it's embarrassing so here's a new attempt...

Vocals - Jón Þór Birgisson (Sigur Ros)
Guitar - Johnny Marr
Guitar 2/Fun Stuff - Jonny Greenwood
Bass - Roger Waters
Drums - Neil Pert

Clean Vocals; ICS Vortex
Vocals/Lead Guitar; Chuck Schuldiner
Rhythm/Lead Guitar; Muhammed Suiçmez
Bass; Alex Webster
Drums; Gene Hoglan
Keyboards; Steinar Sverd Johnsen

Vocals-Ronnie Radke

Lead guitar-Mick Thompson

Bass guitar/vocals-Max Green

Drums-Travis Barker

Rhythm guitar-Frank Lero

Electric keyboard-James Baney

Bruce ****inson - Singer (Iron Maiden)
Geedy Lee - Bass (Rush)
Joey Jordison - Drums (Slipknot)
Kirk Hammett - Guitar (Metallica)

Ultimate Band; as follows,
 

Vocals- Donald Fa gen
Wurlitzer-keyboard- Donald Fa gen
Bass- Walter Becker
Drums- Bernard Purdie
Percussion-Gary Coleman
Horns- Lou Marini ,Sax
Thomas Malone- French Horn
Chuck Finley
Backup Vocals- Tim Schmit, Michael Mc Donald, Venneta Fields

Thats about it for one song,:band: I'll have to switch some horns and backing vocals from song to song but the core can remain the same.
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Wayne Coyne - Vocals, Lyrics, etc.
Graham Coxon - Guitar
Stephen Morris - Drums

They would do indiepop/dance music and it would be great.

They don't have to be alive do they?

Bjork- Vocals
Jim Morrison- Vocals
Miles Davis- Trumpet
Bill Frisell- Guitar
Kronos Quartet- Strings
Pino Palladino- Electric Bass
Herbie Han****- Rhodes/ Piano
Ted Poor- Drums

I need a super gritty guitar player. Maybe Marc Ribot. Georgy Ligeti would write for the strings. Wayne Shorter and Bill Laswell would write most of the tunes together. There would be lots of space and room for improvisation with most of the chord changes being handled by the string quartet. This music sounds so ****ing awesome in my head. Wow.

nice.

hmm my ultimate band (i'll stick to living people)

martin horntveth (jaga jazzist) - drums
stephen perkins (jane's addiction) - percussion
dan bitney (tortoise) - more percussion
sean ramsay (SIANspheric) - rhythm guitar / wall of sound
kim thayil (soundgarden) - lead guitar / wall of sound
paul jago (gandharvas) - vocals / effects
mike patton - vocals / effects
me - bass

All I know is Dio would be the vocalist.