CHILDREN OF BODOM guitarist/vocalist Alexi Laiho joined DEFTONES on stage last night (Tuesday, August 30) at Circus in Helsinki, Finland to perform the song "Root". Fan-filmed video footage his appearance can be seen below. DEFTONES recently began laying the groundwork for its seventh studio release, tentatively due next year. Vocalist Chino Moreno told Billboard magazine that all five members of the group were recording their own ideas already, but that DEFTONES music doesn't rea...