Enya and BONO are two one-named Irish singers. Enya is a singer, songwriter, and musician who has released eight studio albums and won four Grammy Awards. She is known for her ethereal sound and Celtic-influenced music. BONO is the lead singer of the rock band U2 and is widely recognized for his activism and philanthropy. He has won 22 Grammy Awards and was inducted into the Rock and Roll Hall of Fame in 2005.