Legendary Rolling Stones frontman Mick Jagger has reportedly joined in on the supergroup-forming trend, joining forces with British singer Joss Stone, Dave Stewart of Eurythmics fame, reggae legend Bob Marley's youngest son Damian, and Indian film composer A.R. Rahman.  Going with the moniker Super Heavy, the band has quietly been recording their first album for the last 18 months, and hope to have it in stores by September.