Answer:

kesha

AnswerCrossword Clue
KESHAPop artist whose stage name uses a dollar sign
KESHA"TiK ToK" singer
KESHA"We R Who We R" singer
KESHABillboard's Top New Artist of 2010
KESHAGaga contemporary
KESHASinger with the 2009 hit "Tik Tok"
KESHAOne-named singer whose name used to be spelled with a dollar sign
KESHA"Tik Tok" singer
KESHA"Animal" pop singer
KESHA"Blah Blah Blah" pop singer
KESHAPop singer who used to use a dollar sign for the third letter of her name