Bieber is worth $100 million USD.
Sonic is worth in excess of $2 billion USD.
Sonic has also released more material and has been around longer. Therefore the answer is clearly Sonic.
justin bieber
Justin Bieber? Who is she?... never heard of her. Sonic on the other hand is a great place to eat for cheap.
well, both went worldwide but sonic was longer so sonic is more famous
Justin Bieber is more famous
justin bieber the reason i dont delete the what the first person wrote is because the are idiots of course sonic is more popular than justin everyone loves sonic and anyone that loves justin bieber is either a fan girl or a gay dude
justin bieber is more famous
One Direction and Justin Bieber are better than both of them!
bieber
You need to consider how many fans each of them have... I hate to say it, but Justin Bieber is WAY more popular than Sonic. You don't see Sonic all the time on TV, or see people wearing Sonic shirts everywhere you go. There are a lot of Sonic fans out there, but Justin Bieber definitely has a lot more.
I believe Justin Bieber is more famous.
Justin Bieber.
Justin Bieber.