They had just finished a performance at a nightclub.
Two other people are listed in critical condition.
Navaira and his band, Rio, have released more than a dozen albums, one of which received the 2003 Grammy for best Tejano album.
Tejano singer Emilio Navaira hurt in crash
HOUSTON Navaira was one of eight people injured when his band's tour bus crashed into traffic barrels on a Houston highway.
