Massari and his family moved to Montreal when he was 10 years old. At 13, he moved to Stittsville, Ontario with his younger brothers Sami and Samer. He has made Stittsville, Ontario his home. In 2002, he released his first song "Spitfire" that received local radio airplay on Ottawa's Hot 89.9. Three years later, he released a self-titled album—Massari. His debut album resulted in four singles, receiving Gold certification in Canada, and he went on to have international success including in Europe, Asia, the Middle East and in his home country Lebanon.

Massari's second album is in preparation. But he has been releasing tracks from the album. The first two singles of the album, "Say You Love Me" and "In Love Again", premiered on April 28, 2008 on his MySpace site. "Say You Love Me" was a hit on radio stations worldwide, and on May 16, it was first performed in Lebanon on Star Academy Arab World. In 2009, he released "Bad Girl" and "Body Body", yet the third and fourth single/video from a new album that is coming soon in November 10 2009, said the singer.