1990 - ReHkO started to work with Studio Nancy Miranda in São Paulo, Brazil. After a few years he started to give singing classes and to play at the studio concerts.
1991 - At Studio Nancy Miranda Roberto de Carvalho (Rita Lee's partner) saw ReHkO singing and playing and invited him to be one of his musicians in his solo album.
1992 - In an audition for keyboard players that sing and play, ReHkO met Sergio Dias Baptista (Os Mutantes) and started to work with him in his solo Album “Mind Over Matter”, in this tour they've had the honor to open for The Rick Wakeman (Yes) in the Olympia, São Paulo, Brazil.
1994 to 2001 – After working with Roberto de Carvalho in his solo album, Rita Lee Jones called and invited ReHkO to be one of her musicians in several tours (“A Marca da Zorra”, “Ando Meio DesLeegada - MTV Unplugged” & “3001”). ReHkO recorded the album “A Marca da Zorra” Live at the Canecão, Rio de Janeiro, Brazil. In this tour they played in all the Capital Cities in Brazil, Portugal and Uruguay; In all the concerts with Rita Lee & Roberto de Carvalho they've had the honor to play with the greatest names of the brazilian music, among them are: Caetano Veloso, Erasmo Carlos, Zélia Duncan, Pato Fu, Paula Toller (Kid Abelha), George Israel (Kid Abelha), Fernanda Abreu, Ed Motta, Leo Gandelman, Ney Matogrosso, Barão Vermelho, and many others...
In the tour “A Marca da Zorra”, they had the honor to open the concerts for The Rolling Stones and The Spin Doctors, in the Vodoo Lounge Tour (1995), In São Paulo (Pacaembu Stadium) and Rio de Janeiro (Maracanã Stadium), Brazil, with an audience of 200.000 people and with that tour they've won The "Shell Award" as "The Best Show of The Year".
2003 to 2005 – ReHkO was working with Sergio Dias Baptista in his solo album Estação da Luz. In this tour they've played at The Guanabara in London, England, recorded live by the BBC radio.
2006 - With the revival of the legendary band Os Mutantes ReHkO had the honor to be invited to join the group and perform at The Barbican Center, London, England and play with great names of the internacional music, opening for The Flaming Lips in Los Angeles, California at The Hollywood Bowl with Devendra Banhart at The PitchFork Festival in Chicago, Michigan and with Mike Patton (Faith No More), among other great musicians around the world.
They recorded live for Sony Music Internacional a CD & DVD "Mutantes Live at The Barbican Theatre in London – 2006". This recording was Latin Grammy Nominated in two categories for Best Rock Album & Best Album cover.
2006 - ReHkO with Os Mutantes got The "TIM AWARD of Best Pop Band of The Year" in Brazil.
2007 - ReHkO recorded a Mutantes track called “Tecnicolor” in the Album "Jardim Elétrico: A Tribute to Os Mutantes", with the Italian Record Label: Madcap Collective released in Italy.
2008 - Highlighting The first concert in São Paulo, Brazil, April 27, Virada Cultural at São João Stage, with an audience of 70.000 people.
2009 - ReHkO recorded with Os Mutantes the album “HAIH or Amortecedor” released with the American Record Label: Anti Epitaph in Los Angeles, CA, released in September, 2009, all around the world.
2010 - ReHkO with Os Mutantes recorded the Brazilian version of the album “HAIH or Amortecedor” in that version ReHkO has one song "Call Me", this album was released by Coqueiro Verde Records from Brazil. This recording was Latin Grammy Nominated for Best Rock album in September 2011.