The Pussycat Dolls appeared on both seasons of the Pussycat Dolls Present: on a video message shown to the contestants each week. Note: Carmit Bachar was still a member of The Pussycat Dolls during both seasons.

The Pussycat Dolls had re-recorded "Don't Cha" in Simlish for inclusion in the computer game The Sims 2 Pets.^[45] They also appeared in character form in the computer game Asphalt 2: Urban GT in November 2006.

The album spawned six more singles. The ballad "Stickwitu" was another top five in the U.S.,^[18] selling over three million digital downloads and CDs worldwide.^{[citation needed]} It was later nominated for a Grammy for Best Pop Performance By a Duo or Group. Their third single, "Beep", which featured rapper will.i.am, did not perform as successfully as the previous two singles but still went to number one internationally.^[19] A subsequent single, "Buttons" (with rapper Snoop Dogg) reached number three on the UK singles chart;^[19] the next single, "I Don't Need a Man" was not as successful. The group's sixth single from the album was "Wait a Minute" released in the U.S. in August 2006.^[18]

The second studio album from the Pussycat Dolls is scheduled for release worldwide on September 20, 2008, and in the U.S. on September 23,^[23] with tracks produced by Dr. Dre, Timbaland, Eminem, The Clutch, Sean Garrett, Scott Storch, Darkchild, Fernando Garibay, Ryan Tedder, Mark Taylor, Taio Cruz,^[24] and others.^[25] Two other confirmed tracks are "Bottle Pop" and "Away" which were written and produced by Fernando Garibay.^[26] On May 20, the Pussycat Dolls performed their new single "When I Grow Up" for the first time live on Jimmy Kimmel Live^[27][28] and again at the MTV Movie Awards on June 1.^[29] They also performed the song at the first results show of the 2008 season of So You Think You Can Dance. The song was released on May 27, 2008.^[30] Other promotions include hosting the 2008 Maxim Hot 100 on VH1 on the position number seventeen.^[31] On May 28 they confirmed in a radio interview that one of the tracks from the album is titled "In Person", and that it has a '1960s' vibe, a la Tina Turner.^[32] Timbaland will be the executive producer of the album.^[33]

They also negotiated a deal with Estée Lauder for a Pussycat Dolls line of cosmetics under the Stila brand.^[47]

They also performed their hit singles "Buttons" and "When I Grow Up" at the MTV Asia Awards 2008 in Genting Highlands, Malaysia.

Nicole Prescovia Elikolani Valiente Scherzinger^[1] (also known as Nicole Kea) (born June 29, 1978) is an American pop/R&B singer, songwriter, dancer, producer and occasional actress best known for her role as the lead vocalist for the Pussycat Dolls.^[1]

The Pussycat Dolls announced that in March/April 2009 they will embark on a world tour in support of their Doll Domination album.^[38][39] In an interview with Capital Radio,^[40] Ne-Yo revealed he will be touring with the group.

A second season of the show kicked off on February 18, 2008. Instead of being titled Search for the Next Doll 2, the new series is titled Pussycat Dolls Present: Girlicious. Unlike the previous series which tried to find a new member to join the Dolls, the second series is auditioning girls to become part of a new 3 member all-female group, Girlicious. However, on the show's finale, it was revealed that Girlicious would be a quartet.^[42][43]

After the disbanding of Eden's Crush, Scherzinger made a few promotional solo appearances under the stage name of Nicole Kea, including covering "Breakfast in Bed" for the soundtrack to 50 First Dates in 2003.