Casey Calvert, guitarist with emo rockers Hawthorne Heights, died last Friday night on the band's tour bus, which was travelling between Detroit and Washington DC.

Casey Calvert, guitarist with emo rockers Hawthorne Heights, died last Friday night on the band's tour bus, which was travelling between Detroit and Washington DC.

Details of the 26-year-old Calvert's death is as yet unknown, but some reports suggest it may have been linked to an asthma attack. Calvert's death has caused the most recent dates on the and's US tour to be postponed. The band are currently embroiled in legal wranglings with, amongst others, Victory Records.

And in more sad news, the frontman of US metal band Quiet Riot, Kevin DuBrow, also died this weekend. The 52- year-old founding member of the pioneering metal outfit was found dead at his Las Vegas home on Sunday.

Cause of death is yet to be confirmed.