The Voice earlier this year where his brother Guy, 39, was a coach, it was one of the first times the curtain was lifted on the relationship between the Sebastian brothers.WATCH: Chris Sebastian makes his brother cry on The VoiceIt was clear the pair were close and apparently, that tight-knit relationship extends to the rest of the Sebastian brothers, which also includes Jeremy, 30, and Ollie,42.Speaking to WHO, Chris gushed over his siblings and revealed the special Christmas traditions they