Sinatra
Harry is probably more popular because he is the lead singer and LOVES the stardom. But Niall is my favorite, there for the most popular... to me!
This depends on the age limit, but Lady GaGa (age 25) is the only singer more popular than Justin Bieber.
Definitely Carrie Underwood, Carrie Underwood is a way better singer than Taylor Swift and is more popular.
totally
she is a girl+singer songwriter
the most popular singer that is ALIVE is probably Taylor swift
Popular enought.she is a excellent singer she gotten better in her singer from 2004 and now
Well, Kylie WAS the lead singer bfore, but Done With Dolls got more popular after her sister Jordan began singing.
Yes, Danna Paola is a very popular singer/actress in Mexico.
More people know about Fergie than Shakira, but people say Shakira's a better singer.
it depends on how you look at the singer.