LISTEN: Josh Groban's First Studio Demo Has Been Released

Josh Groban is celebrating the 20th anniversary of his multiplatinum debut album with a special expanded version featuring two rare tracks - including his earliest studio recording!

Groban was only 20 when he rocketed to success almost overnight: having filled in for Andrea Bocelli during a Grammy rehearsal with Celine Dion, the evening's host, Rosie O'Donnell, had him appear on her popular talk show. This in turn led to a striking guest appearance on Ally McBeal; by the end of the year, his debut album was in record stores.

WATCH: Josh Groban Debuts on 'Ally McBeal' in 2001

A mix of traditional classical and opera compositions with some striking adult contemporary and pop tunes like "To Where You Are" and "You're Still You," there was simply no voice like Groban's distinctive baritone on the radio. When all was said and done, Josh Groban climbed into the Top 10 of the Billboard 200 and sold over five million copies in America - setting the singer up for a still-ongoing career in entertainment.

This special 20th anniversary edition of his debut features two extra songs: "Mia Per Siempre," originally released on Japanese copies of the album; and "Roma Mun Fa La Stupida Stasera," an exciting find for fans in that it's billed as his first studio recording. You can hear that recording above!