lady gaga so you think you can dance

Lady Gaga to Guest Judge on 'So You Think You Can Dance' Lady Gaga has been confirmed as a guest judge on an upcoming episode of the Fox talent competition 'So You Think You Can Dance.'Nigel Lythgoe, executive producer and longtime judge on the hit series, has confirmed that Gaga will drop by the set later this season, serving on the judges' panel as contestants dance their hearts out.