Norm Clarke of the Las Vegas Review Journal reports that rumors Celine Dion is underperforming at the box office are groundless, according to Tim Leiweke, president and CEO of Anschutz Entertainment Group, the parent company that produces ‘A New Day …’ and books the Colosseum. “Our box office has been so under siege from 8 a.m. to 10 p.m. that our box office has never been able to break the line,” Leiweke said. “We sent over our Staples Center box office to relieve them. They were absolutely exhausted. We had to send reinforcements.” The story at reviewjournal.com has since been removed.