Billboard has put together a list of the Top 10 Artist Albums by a Duo or Group in 2004. Check out the list below.
1

OutKast are an American hip hop duo based out of East Point, Georgia, a nearby city to Atlanta, Georgia
***
2

Evanescence is a Grammy Award-winning American alternative rock band founded in Little Rock, Arkansas in 1998 by singer Amy Lee and former guitarist Ben Moody
***
3

Maroon 5 is a soul-influenced rock band from Los Angeles, California on A&M/Octone Records
***
4

Linkin Park is a rock band from Agoura Hills, California
***
5

G-Unit is an American hip hop group originating from New York City
***
6

No Doubt is a third wave ska band from Anaheim, California, United States
***
7

Blink-182 was a United States rock trio who played pop punk and punk rock music
***
8

Hoobastank is a rock band best known for their crossover hit 'Hoobastank song The Reason' and by their continued success in the modern rock market.
***
9

Nickelback is a Canadian rock band formed in Hanna, Alberta by Chad Kroeger, Mike Kroeger, Ryan Peake and Brandon Kroeger
***
10

D12 is an American hip-hop group from Detroit, Michigan, which has had albums reach the top of the American, British, and Australian album charts: Devil's Night in 2001 and D12 World in 2004
***