Darrell Metcalf alleged that Justin Timberlake's FutureSex/LoveShow Tour, pictured here in Exhibit B, infringed on his patent for "large-audience displays." (credit: Court documents) It's getting easier than ever for defendants to win fees in patent cases, especially against "non-practicing entities" with no products. But don't tell that to pop stars Justin Timberlake and Britney Spears. The two celebrities and their respective production companies were sued by an entity called Large Audience Displays Systems, LLC (or LADS for short) back in 2009. The patent-holder who came after them is Darrell Metcalf, the inventor of US Patent No. 6,669,346, which describes a way of displaying video images on massive, arced screens.