Robert Downey Jr. is secretly working on a pop album.

The 'Iron Man' star has been meeting with music label executives whose interest was sparked after a duet of him and Sting singing Police classic 'Driven to Tears' became a huge hit on the internet.

A source said: ''Some of the biggest names in the music industry are helping Robert put his album together. Robert has already recorded several songs and he sounds better than a lot of the performers out there.''

Sting and Robert have been friends for years, and he even convinced the 'Fields of Gold' star to sing his track 'Every Breath You Take' when he appeared on TV show 'Ally McBeal' in 2000.

The source added: ''Those two go way back, and you couldn't ask for a better musical mentor than Sting. It's clear Robert is talented, and he's been writing music for as long as he can remember. Who knows, maybe he'll win a Grammy before he wins an Oscar?''