After her tour with TSO , she joined Josh Groban on his Closer Tour as a guest soloist and concertmaster .
Micarelli was the concertmaster with the Trans - Siberian Orchestra ( TSO ) on their Christmas Season Tour in 2003 .
After Micarelli 's tour TSO TSO , Micarelli joined Josh Groban on his Closer Tour as a guest soloist and concertmaster .
Micarelli was the concertmaster with the Trans - Siberian Orchestra ( TSO ) on their Christmas Season Tour in 2003 .