Roberto Valverde, best known as Robo, played in The Misfits. He left to join Black Flag, the former band of Henri Rollins.
Robo was the second drummer for Black Flag, replacing initial drummer Brian Migdol in 1979. Robo is featured on "Jealous Again", an EP released by Black Flag in 1980 on SST Records.
Early in 1981, Black Flag signed a record contract with Unicorn Records, a subsidiary of major label MCA. The band delivered their first full-length album "Damaged". However, the label refused to release the record, citing the content of the music as "too dangerous and vulgar". Black Flag decided to release the album on their own SST Records. Upon its release, the album received considerable critical acclaim. Smelling money, Unicorn was quick to sue Black Flag and SST over the release of "Damaged".
The legal fight left the band prevented from using the name Black Flag or their logo on any records for two long years. During that time, the group continued to tour, and even released "Everything Went Black". The album contained no mention of the band, although it listed the names of the members on the front cover.
The dispute ended in 1983, when Unicorn went bankrupt and the rights to the Black Flag name and logo reverted back to the band. The band returned to recording in 1984 with a new line-up, including drummer Bill Stevenson, who had replaced Roberto "Robo" Valverde.