There's lots of them... some of them being boy bands. -- One Direction -- Jonas Brothers -- The Beatles (or at least possibly to an extent) -- Backstreet Boys -- Nsync -- Elvis -- Katy Perry -- Shakira -- Most pop stars today.
Basically, it is harder for a musician to be truly famous I feel if they are not at least reasonably attractive. Sure-- it is a possible, but being a famous musician in part requires a "look" along with decent music. For metal, that may mean long hair and a reckless attitude. For a pop star, that may mean youth, a pretty face, and keeping up with current trends.
To get to a certain level of fame, you almost have to be reasonably attractive. Sure, that can be made up with the voice of Freddie Mercury or the guitar god skills of Tosin Abasi, but generally, looks will give one more fame.
Selena Gomez cannot sing. She is not talented, she is not creative, she is a bad performer and dancer. She is way more popular then Demi Lovato, just because she is "prettier" judged by society. I personally think Demi is one of the most sexy and inspiring girls and one of the best artist ever.
Selena has a weird face that is round, she has a wide nose, weird teeth, almost flat boobs, flabby abbs and no ass. She is only popular because of the drama with JB. I have to disagree for Katy Perry. She deserves it all! Slay 👸🏻!
I am not too sure, but the singer in the band that is not really heard of which is called "the sparks" ~Katy Perry ~selena Gomez ~avril lavigne ~hunter hayes ~Taylor Swift ~Adam Levine ~Jason Alden ~Garth Brooks ~Blake Shelton ~Luke Bryan? Those maybe. I don't know