Amy Lee of Evanescence

OutKast, Jay-Z, Beyoncé, and the Neptunes' Pharrell Williams are tied for the lead with six nominations apiece. Missy Elliott, 50 Cent, Eminem, the Neptunes' Chad Hugo, Justin Timberlake, Ricky Skaggs, Evanescence, Luther Vandross and the late Warren Zevon are close behind with five noms each.

The four big categories--album of the year, record of the year, song of the year and best new artist--reflect the dominance of rap, hip-hop and R&B artists in mainstream music as well as the renewed popularity of rock music.

Up for album of the year are Missy Elliott's Under Construction, Timberlake's Justified, Evanescence's Fallen, the White Stripes' Elephant and OutKast's Speakerboxxx/The Love Below.

Hip-hop duo's OutKast's single "Hey Ya!" will go head-to-head for record of the year against Black Eyed Peas' "Where is the Love?," Beyoncé and Jay-Z's "Crazy in Love," Eminem's "Lose Yourself" and Coldplay's "Clocks."

For song of the year, which goes to the songwriter as opposed to the recording artist, nominees are Linda Perry for Christina Aguilera's "Beautiful," Eminem and Luis Resto for Eminem's "Lose Yourself," Richard Marx and Luther Vandross for Vandross' "Dance With My Father," Avril Lavigne and the Matrix for Lavigne's "I'm With You" and the late Warren Zevon and Jorge Calderon for Zevon's "Keep Me in Your Heart."

Sean Paul, 50 Cent, Evanescence, Fountains of Wayne and Heather Headley will compete for the best new artist award.

The Grammy Awards will be held on Sunday, February 8 at the Staples Center in Los Angeles and will be telecast on CBS from 8-11:30 p.m. (EST/PST).

Here is a partial list of nominations (a full list of nominees is posted on Grammy.com):

Album of the Year