System of a Down releases first new music in 15 years

System of a Down has released new music. But what makes this news significant is that it's been 15 years since the heavy metal band has dropped new songs.

The two singles, "Protect the Land" and "Genocidal Humanoidz," made their debut on Friday, with proceeds from the music going to Armenia Fund, since the group's band members Serj Tankian, Daron Malakian, Shavo Odadjian and John Dolmayan are of Armenian descent.

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System of a Down released their first album in 1998 and eventually became internationally known following their 2001 hit album, "Toxicity." In 2005 the band had two albums climb to No. 1 on the charts, making the group the only artists alongside 2Pac, The Beatles and DMX to achieve such a feat. In 2006 their song "B.Y.O.B." won a Grammy Award for Best Hard Rock Performance.

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