Singer Kelly Rowland has been forced to reschedule her summer (13) tour so she can get to work as the newest judge on America's The X Factor. The former Destiny's Child member was set to hit the road with R&B star The-Dream for their Lights Out trek on Friday (24May13), but a number of dates have been postponed to allow Rowland to film the TV talent show. Five scheduled shows will still go ahead, but the first night of the tour in Kansas City, Missouri has been scrapped, as have the duo's stops in Boston, Massachusetts; Jackson, Mississippi; Baton Rouge, Louisiana; Cleveland, Ohio; and Cincinnati, Ohio. In a post on her Twitter.com page, Rowland has promised the axed concerts will be "bigger and better" when they are eventually staged, writing, "To My Dearest Rowland Stones (fans)... Words cannot express how thankful I am to have you guys on my side. Although the tour had to be rescheduled because of X Factor, I'm looking forward to bringing you guys a bigger and better show. I can't wait to see each and every one of you guys on the road. Thank you..." Rowland began shooting the third season of The X Factor this week (beg20May13) after she and Paulina Rubio were unveiled as the latest additions to the series' panel. Meanwhile, The-Dream still hopes to make a handful of solo appearances, insisting, "I want to wish my friend Kelly congratulations on her new gig at X Factor. Unfortunately, we have to change some tour dates which has been extremely hard for me and for Kelly. We are looking forward to seeing everyone at a later date. But in support of (my new album) IV Play, I will find the time to come to some of the cities left out to the best of my ability, if only to be in front of the fans that support us."