• Complete Name: 

Rubens Geraldo Oliveira Mattos

• Birthday:

3/11/1951

• Born in:

Vitória - ES

• Plays: 

Bass, Guitar, Acoustic Guitar and Cavaquinho

• Musical Formation: 

Several particular teachers of  classical and popular

• Favourite Musical Style:

British and American Pop from 60's, Progressive Rock and  British Hard-Rock 

• Favourite Foreign Bands: 

Beatles, ELP and Yes

• Favourite Brazilian Bands: 

Chico Buarque, Gilberto Gil and Beto Guedes

• Idols: 

The Beatles

• Best Bassist ol All Times:: 

Chris Squire and Paul McCartney

• Best 3 Disks: 

ALL Beatles, Close to the Edge (Yes) and Brain Salad Surgery (ELP)

• Best Shows: 

ELP at Metropolitan, 1998

• Favourite Songs of Haddad CDs:

Metatron and O Archaeopteryx ( Deuses...) and I'm Leaving You (CD Blues e Outros Bichos);

• Best Books: 

The Martian Chronicles (Ray Bradbury) and 1984 (George Orwell)

• Best Movies: 

The Sound of Music (Julie Andrews), A Hard Day's Night (Richard Lester), with The Beatles, 2001, A Space Odyssey (Stanley Kubrick) and Hair (Milos Forman)