Musically, the Pussycat Dolls primarily incorporate pop and R&B influences, often fused with elements of dance-pop and urban. Their self-titled debut album (2005) is noted for its predominantly R&B sound and features contributions from producers Timbaland, will.i.am, and Rich Harrison. The album was commercially successful, achieving multi-platinum status in several countries, and spawned the international chart-topping singles "Don't Cha" (featuring Busta Rhymes) and "Stickwitu".
The group's second album, Doll Domination (2008), embraced a more dance-oriented sound, collaborating with producers such as Dr. Luke, Akon, and Sean Garrett. The album achieved respectable sales but did not match the success of its predecessor. The lead single, "When I Grow Up", was a commercial success and became the group's second number-one hit on the US Billboard Hot 100.
After the release of Doll Domination, the Pussycat Dolls experienced lineup changes and disbanded in 2010. However, in 2019, it was announced that the original lineup of the group would reunite for a performance at the 2020 Super Bowl halftime show, which featured special guest performer Snoop Dogg.
In terms of their artistic identity and style, the Pussycat Dolls are known for their elaborate stage performances, which often involve intricate dance routines, synchronized choreography, and elaborate costumes. Each member of the group possesses their own unique talents and roles within the collective.
Overall, the Pussycat Dolls have achieved commercial success and popularity through their blend of pop and R&B music, coupled with their highly choreographed performances and distinct visual aesthetic.