"Hush Hush; Hush Hush" is a song by American female group The Pussycat Dolls from their second and final studio album, Doll Domination (2008). Written by Nicole Scherzinger, Andreas Romdhane, Josef Larossi, Ina Wroldsen, Dino Fekaris, Frederik Perren and produced by Quiz & LaRossi and Dave Audé for the remixed version, it was released as the album's sixth and final single on May 12, 2009. Lead and background vocals for both versions of the song are performed solely by lead singer Nicole Scherzinger. The release caused controversy as the single was credited as "Pussycat Dolls featuring Nicole Scherzinger" which caused tension within the group and rumored that Scherzinger would be going solo.

The song was originally a slow ballad, but was remade into an uptempo, disco-inspired dance song sampling parts of Gloria Gaynor's 1978 hit "I Will Survive". Lyrically, the song is about a strong woman who laments of the death of her relationship and never asks help from her lover. The "post-breakup anthem", received mixed reviews by critics who noted that it lacked the R&B edge of "Don't Cha" and "When I Grow Up" while others noted it's better than the original version.

Commercially the song has had moderate success managing to peak top-ten in Australia, Belgium (Wallonia), Finland and France. In The United States it charted at seventy-three on the Billboard Hot 100, and topped the Hot Dance Club Songs chart. An accompanying music video for the song, directed by Ray Kay, premiered on May 27, 2009. The video was met with mixed reviews, criticizing the over-emphasis on Scherzinger but noted for being "the most revealing Pussycat Dolls video yet".

Hush Hush was written by Andreas Romdhane, Josef Larossi, Ina Wroldsen, Nicole Scherzinger, Dino Fekaris, Frederik Perren In 2009 Ron Fair and Dave Audé produced a remix of the song now titled "Hush Hush; Hush Hush" for Scherzinger to perform on the Doll Domination Tour. The new version features additional vocals sampled from Gloria Gaynor's worldwide smash hit "I Will Survive". The song is written in the key of Bb minor.

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