Bad news for you Bon Jovi ticket holders. Guitarist Richie Sambora has suddenly dropped out of their world tour reportedly over tensions with Jon. The band made the announcement on their website and to fans just moments before their concert in Calgary Tuesday night. To help make it up to the crowd, the band even donated $100,000 to one of the city's local homeless shelters. Talk about class! Well, we hope Richie's departure is only temporary and the two can work it out.