Just days after Jessica Simspon's ex-husband Nick Lachey announced he and girlfriend Vanessa Minnillo were tying the knot, Jessica and her new beau, Eric Johnson, are also planning to walk down the aisle. UsMagazine.com is reporting first reported that 30-year-old songbird Simpson is indeed engaged according to their sources. Minutes later, Simpson's rep confirmed the news to In Touch, stating that Jessica and Eric "are thrilled" about it. Us reported that Jessica also "flashed a sizable ring on her left hand during an appearance at Dillard's at Oak Park Mall in Kansas City." It was just last...