And though he frequently tours with orchestras as a soloist, Boyar is also a member of a hip-hop band.

NPR: Percussionist Simon Boyar, Breaking New Ground

Helmet-makers aren't necessarily hip to the band's music.

WSJ: Fans Lose Their Heads in Pursuit of Daft Punk Helmets

The soundtrack, with original music by Malaysian composer Adam Mansor, combines urban dance music with traditional Malay folk music -- in harmony with the storyline about a hip-hop band in Kuala Lumpur who head east into the Malay heartland, on the run from loan sharks because they can't repay the money they borrowed for their equipment.

CNN: From Our Correspondent: Hip Hop Reality

That's Chicago MC Rhymefest rapping about losing his job, borrowing money to pay his gas bill, and feeling pressured to sell drugs - all over a sample of the hip, New York band The Strokes.

NPR: 'Blue Collar': Rhymefest on the Way Up

The band formed seven years ago and their sound fuses hip hop, soul, R 'n' B and rock.

BBC: Trinity Band, from Derby, win ?50,000 deal at contest

Rather than using a live band, her brother DJ Hektik plays mixes of hip-hop and jazz for their choreographed performances.

CNN: A modern celebration of African-American history

Decades before hip-hop-style cut and paste became the norm, this band was smashing together elements of samba and psychedelic rock into totally delightful collage.

NPR: Os Mutantes (Finally) Make American Debut