Girl bands are musical groups composed of female singers and musicians. They often perform pop, rock, R&B, and hip-hop music. The term 'girl band' is often used to refer to all-female bands, but it can also be used to describe bands with both male and female members. The answer to the crossword puzzle is TIARAS, which is a type of headwear worn by women and girls. Tiaras are usually made of precious metals and decorated with jewels, and they are often worn as part of formal attire or for special occasions.