Mike Porcaro, the former longtime bassist for American rock band Toto has died aged 59, his bandmate and brother Steve Porcaro confirmed via his Facebook page on Sunday. “Our brother Mike passed away peacefully in his sleep at 12:04 AM last night at home surrounded by his family. Rest in peace, my brother,” wrote the keyboardist on his personal Facebook page.

TOTOToto's Steve Lukather performs in London, 2011

Toto singer Steve Lukather later added his condolences via the group’s official page writing, “My brother Mike Porcaro is now at peace. I will miss him more than I could ever put into words. My deepest love to the family. God bless,” wrote Steve, who has played with the band since 1975.

Porcaro joined the band which already included his brothers Steve and Jeff in 1982 and stayed until 2007 when he was forced to retire after being diagnosed with ALS, also known as Lou Gehrig’s disease. The band are best known for the hits ‘Rosanna’ and ‘Africa’ as well as the 1982 album Toto IV on which Porcaro featured.

The album took home six Grammy Awards in 1983, including Album of the Year, Producer of the Year for the band, and Record of the Year for lead single ‘Rosanna’.

The bassist, alongside his bandmates, was inducted into the Musician’s Hall of Fame in 2009 and in the following year the band announced they would tour to raise money for Porcaro as well as bring more awareness to ALS.