Nicole Scherzinger, Kimberly Wyatt and Ashley Roberts. Rankin/Publicity Share on Facebook Share on X Google Preferred Share to Flipboard Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Send an Email Print the Article Post a Comment The Pussycat Dolls, best known for hits "Buttons," "When I Grow Up," and "Don't Cha," have confirmed their reunion with the release of a new single and global tour dates in the U.S. and Europe.