Nu metal
In the mid-to-late 2000s, many nu metal bands experimented with other genres and sounds. Linkin Park's third studio album "Minutes to Midnight", released in 2007, was noted for its complete departure from the band's nu metal sound. Nu metal bands such as Disturbed and Drowning Pool moved to a hard rock or standard heavy metal sound. Slipknot also departed from their nu metal sound and included elements of groove metal, death metal and thrash metal into their music. Staind and Papa Roach moved to lighter sounds. Staind's 2003 album "14 Shades Of Grey" does not express as much anger as the band's previous albums and shows the band's departure from heavy metal elements and a movement towards a lighter sound. Papa Roach abandoned the nu metal genre with their 2004 album "Getting Away with Murder", moving to a hard rock style.