There are at least 3 bands called Leonardo:
1) a rock music project from Italy.
2) a Brazilian country music singer from Goiás state.
2) a Brazilian gaucha music singer from Rio Grande do Sul state.
3) Serbian neoclassic metal band.
4) Leonardo Ringo, an Indonesian musician, Zeke and The Popo Band, from Jakarta Inspired by Lou Reed, Richard Hawley, Jeff Buckley, and Tom Waits, Leonardo (drummer from Zeke and the Popo, Indonesia) decided to record his own album which to be named "The Sun" from November 2008 to January 2009.