One of the chase planes during flight #20 of the F-35A Lightning II, was this F-16DJ. This plane is also used as a flying testbed for the F110-GE-132 engine, the engine used in the block 60 Desert Falcon.
Singaporian F-16 returning to Luke after a training mission. Equipped with the spine and LANTIRN pod they have not a lot in common with the original slim and lightweight F-16.