Crazy Kids had 3 versions on sales (solo, willy, Juicy) and had promo. As well as a additional Pitbull version.
G.U.Y. was announced to be a single days before the video, the video was 11 mins and only had 1 TV promo spot which was more towards the Roseland residency.
G.U.Y. wasn't promoted. It was released as a apology for the lack of DWUW video. Still despite that, it showed to be more promising in its first week than most pop girl post album singles. If Gaga promoted it could have easily gone Top 20.