Hellyeah guitarist Greg Tribbett has reportedly been forced to back out of the band's remaining tour dates to return home for a family emergency.  The band will finish the tour, on which it is opening for Clutch, as a four-piece band.  According to the band's frontman Chad Gray, "We all stand with our brother Greg while he tends to personal matters. Our thoughts are with him and his family, and while the shows won't be the same without him, we will soldier on for our fans and close out this tour in the same kick ass fashion we always do. There's a lyric in our new song 'Band Of Brothers' that says, 'I've got your back and you've got mine,' and that couldn't be more true for us right now."