While Richie Sambora is checking into rehab to regain his sobriety, BON JOVI have enlisted Phil "Phil X" Xenidis on the band's current tour dates. The Canadian-born Phil X is best known as the guitarist who replaced Rik Emmett in TRIUMPH for the Edge of Excess album and tour. Bon Jovi's new line-up made their debut at the New Orleans Jazz Fest's Acura Stage yesterday (April 30th).