During their hiatus, Scherzinger planned to embark on her solo career with Her Name is Nicole, but it was later shelved after four singles failed to impact the charts significantly. Following the disbandment of The Pussycat Dolls , Scherzinger became a judge for two seasons of The Sing-Off and in won the tenth season of Dancing with the Stars. Later that year she served as a judge during the first season of the American version of The X Factor before heading to the UK version for two years in , before returning in Throughout a career spanning over 13 years, she has had three UK number one singles, sold over 16 million albums and over 37 million singles worldwide. Having sold 16 million records as a solo artist, and a further 54 million with Pussycat Dolls, Scherzinger is one of the highest-selling female singers of all time. Since her first chart entry in , Scherzinger has also scored 20 top 20 hits on the UK Singles Chart.