Scherzinger, who studied theatre and dance at the Wright State University in Ohio, was a member of the best-selling girl group the Pussycat Dolls, who have sold 50 million records worldwide. As a solo artist, she has sold 16 million records. In 2011, she joined the U.K. version of "The X Factor" as a judge.

In a previous press statement, Scherzinger commented, "I am really thrilled to be making my West End debut in such an iconic show and I couldn't be more excited. To have the opportunity to work with Andrew, Trevor and Gillian is a dream come true. I grew up listening to Andrew's extraordinary music and was lucky enough, a couple of years ago, to record Cats’ beautiful song 'Memory'. Andrew’s score is breathtaking and I am truly honoured to have been asked to take part in what I know will be a very special time in my career."

Also in the cast are Cameron Ball (Macavity/Admetus), Kathryn Barnes (Tantomile), Cassie Clare (Cassandra), Ross Finnie (Skimbleshanks), Charlene Ford (Bombalurina), Stevie Hutchinson (Pouncival), Adam Lake (Alonzo), Paul F Monaghan (Bustopher Jones/Asparagus/Growl Tiger), Joel Morris (Carbucketty), Natasha Mould (Jemima), Benjamin Mundy (Coricopat), Antoine Murray-Straughan (Rum Tum Tugger), Joseph Poulton (Quaxo/Mistoffelees), Nicholas Pound (Old Deuteronomy), Sophia Ragavelas (alternate Grizabella), Clare Rickard (Jellylorum/ Griddlebone), Adam Salter (Bill Bailey), Laurie Scarth (Jennyanydots), Hannah Kenna Thomas (Victoria/White Cat), Callum Train (Munkustrap), Zizi Strallen (Demeter), Dawn Williams (Rumpleteazer) and Benjamin Yates (Mungojerrie), who are joined by swings Ryan Gover, Barry Haywood, Alice Jane, Grace McKee, Dane Quixall and Libby Watts.

Cats is booking through Feb. 28, 2015 (Scherzinger will only play the role of Grizabella through Feb. 7). To book tickets, contact the box office on 0844 874 0667 or visit www.catsthemusical.com/london.