Kourtney Kardashian sparked another weekend rumor storm after fans combed through her birthday tribute to Travis Barker like it was the Zapruder film. In a photo carousel celebrating her drummer husband turning 50, viewers spotted a pair of tiny black-and-white Vans sneakers — and instantly jumped to “Baby No. 5?” The shoes could easily belong to their two-year-old son, Rocky, especially since they had an “R” on the heel. But online sleuths insisted the kicks might be a clue that another Kardashian-Barker baby is on the way. Others pointed out the obvious — Travis literally collaborates with Vans, so the photo might be nothing more than product placement, not pregnancy propaganda.