The Grammys just got several jolts of star power.

Madonna will perform on the CBS telecast, which starts at 8 p.m. Sunday and runs to 11:30 p.m. By the way, she is a seven-time Grammy winner.

Oscar nominee Julia Roberts will be a presenter, so she obviously isn't tiring of the awards-show rounds.

An "In Memoriam" tribute to Phil Everly will bring together Billie Joe Armstrong of Green Day and Miranda Lambert.

The latest announced performers include Trombone Short & Orleans Avenue and rapper Juicy J.

The presenters include actor-writer Steve Coogan of "Philomena," actor Jeremy Renner of "American Hustle" and Grammy nominee Charlie Wilson.

LL Cool J hosts the show at the Staples Center in Los Angeles.