Spoiler Clip: Rachel, Mercedes, Santana and Kurt Sing Whitney Houston's "How Will I Know" in Glee Season 3, Episode 17: “Dance With Somebody” (VIDEO)
![](http://pinterest.com/pin/create/button/?url=http://www.wetpaint.com/glee/articles/spoiler-clip-rachel-mercedes-santana-and-kurt-sing-whitney-houstons-how-will-i-know-in-glee-season-3-episode-17-dance-with-somebody-video%3Futm_source%3Dpinterest.com%26utm_medium%3Dshare%26utm_campaign%3Dvrl&media=http://static.wetpaint.me/glee/ROOT/photos/317GLEEEp317Sc190113-391086628163522840.jpg&description=Spoiler Clip: Rachel, Mercedes, Santana and Kurt Sing Whitney Houston's "How Will I Know" in Glee Season 3, Episode 17: “Dance With Somebody” (VIDEO))
full size
Glee's Whitney Houston tribute, Season 3, Episode 17: “Dance With Somebody,” is less than a week away, and now TV Line has the exclusive first performance from the video.
In the spoiler clip, Rachel (Lea Michele), Santana (Naya Rivera), Mercedes (Amber Riley) and Kurt (Chris Colfer) sing a beautiful acapella version of Whitney's classic "How Will I Know." It's a slow, powerful, and moving performance of the hit song, and something you truly don't want to miss.
