X Factor judge Scherzinger and tap dancer/choreographer Samuels Smith will appear during the Thursday night results show on Fox.
So You Think You Can Dance said goodbye to another two dancers this week, leaving just 12 contestants in the running to be named America's Favourite Dancer for the eighth season.
Florence and the Machine and the Cedar Lake Contemporary Ballet were the performers on this week's results show. LMFAO and Keri Hilson have also performed on the So You Think You Can Dance stage this season.
Scherzinger will make her debut as an X Factor judge in the first season of Simon Cowell's music competition this September. She will join Cowell, Paula Abdul and LA Reid on the panel as they search for the next singing superstar.
Fox will air a preview of the programme, which offers a record-breaking $5 million record deal as its prize, during next week's MLB All-Star Game, which airs Tuesday, July 12 at 8pm ET/5pm PT.
So You Think You Can Dance airs Wednesdays and Thursdays on Fox.
> Find out who was eliminated from So You Think You Can Dance here
> Jesse Tyler Ferguson to judge So You Think You Can Dance
> Read our full So You Think You Can Dance headlines
Watch Nicole Scherzinger's video for 'Right There' below: