Lords of Black In 2014, Romero, together with guitarist Tony Hernando, formerly of Spanish band
Saratoga, founded the heavy metal band Lords of Black. Romero left the band in 2019 but returned in 2020.
Ritchie Blackmore's Rainbow In 2015,
Ritchie Blackmore announced his return to rock with a new lineup for his band
Rainbow, with Ronnie Romero as the lead singer. The band released the album
Horns for a Halo in 2023, after which Brown and Travis departed. They were replaced by
Accept drummer Christopher Williams and
Uriah Heep bassist Dave Rimmer.
Other projects CoreLeoni In 2017, Leo Leoni and Hena Habegger of Swiss hard rock band
Gotthard formed a side project titled CoreLeoni, with Romero, whom Leoni had met in 2014, joining on vocals. Romero left the project in 2020.
The Ferrymen Also in 2017, Romero joined the supergroup The Ferrymen, which additionally includes
Magnus Karlsson on guitar and
Mike Terrana on drums. They released their self-titled debut album the same year. The trio released their sophomore album,
A New Evil, in 2019. '''Nozomu Wakai's Destinia''' In 2018, Romero sang on the album
Metal Souls by Nozomu Wakai's Destinia, a project launched by the Japanese guitarist in 2014.
Michael Schenker Group In 2020,
Michael Schenker announced that Romero would be participating in the upcoming
MSG album
Immortal, which was released in 2021.
Intelligent Music Project Another new musical venture for Romero in 2020 was the
Intelligent Music Project, an enterprise founded by Bulgarian arts patron
Milen Vrabevski in 2010. Romero appears on the albums
Life Motion (2020), ==Band timeline==