Steven Maxwell Porcaro (born September 2, 1957) is an American keyboardist, songwriter, singer, and film composer, known as one of the founding members of the rock band Toto[1] and the last surviving Porcaro brother (after the deaths of Jeff in 1992 and Mike in 2015); as the songwriter of "Human Nature" by Michael Jackson and songs by Toto; and as the composer of the TV series Justified.

[2] Porcaro has appeared as a session musician on recordings by Yes (on Union and Open Your Eyes) and Jefferson Airplane (on their self-titled 1989 reunion album).

Soon after, he took his father down to a Guitar Center to trade in the keyboard for a Farfisa with a Leslie 147 and preamp, which Porcaro called his "first real rig".

Porcaro then played with Boz Scaggs in 1976–77 on his Silk Degrees tour, along with many other original or future members of Toto including his brothers Jeff and Mike, David Paich, Steve Lukather, and Lenny Castro.

He also continued working with Toto in various supporting capacities, assisting with keyboards, drum looping, synthesizers and arranging/composing on all of their albums following his departure.

The album contains 13 songs, one of which reunites Steve with his late brothers Mike and Jeff Porcaro, from recordings made before their deaths.

While David Paich handled piano duties, it was usually Steve's job to complement the music with creative synth sounds.

[19] He was known to use various Yamaha synthesizers, including the CS-80, GS1, DX1, and DX7, as well as others such as the Sequential Circuits Prophet-5, Minimoog Model D, Polyfusion Modular, E-mu Emulator, Roland Jupiter-8, Oberheim Xpander, and Dynacord Add-one.

He also used various keyboards during live performances with the band such as the Wurlitzer 200A in 1979 and Yamaha CP-70 in 1980, sometimes used for covering the piano parts when David Paich was playing organ or a synthesizer.