Deftones, Queens Of The Stone Age, Halford On For Rio

Next year's Rock In Rio festival just got a whole lot heavier with the addition of the Deftones, Queens Of The Stone Age, and Rob Halford to the lineup for the weeklong South American shindig.

Those acts now join a roster that includes previously announced performers Britney Spears, 'NSYNC, Red Hot Chili Peppers, Silverchair, Foo Fighters, and R.E.M. (see "R.E.M., Foo Fighters Added To Rio Festival").

The festival will boast a decidedly Brazilian flair as well, with an army of South American acts including Fernanda Abreu, Pato Fu, Funk 'N Lata, and Daniela Mercury, who was also added to the bill on Tuesday, set to take part. In all, organizers are expecting some 98 acts to sign on for the festival, which kicks off on January 12.

While two previous Rock In Rio concerts have rolled out in years past, this time around AOL is backing the fete, which has expanded its title to the more charitable "Rock In Rio

For A Better World." Proceeds from the 2001 event will benefit educational projects from Viva Rio, a preeminent social services organization in Rio De Janeiro helping 11,000 young people.

Concert organizers expect some 1.5 million people to head to Barra Da Tijuca (an area of Rio De Janeiro) for the event. Tickets are expected to go on sale in October.