How can i find out if they have a trademark?Depends if they have a trademark. Also, if you're using their likeness to your own benefit. If someone would never confuse the two, then you should be good. But with both you guys being musicians, it could happen, so I'd steer clear.

Say I wanted to call myself "Bob" and did a quick search only to discover theres already an established artist called "Bob".
Can I possibly run into any legal problems naming myself that?
I think so. Common was known as Common Sense but there's a band or an artist already named common sense so he had to change it.Say I wanted to call myself "Bob" and did a quick search only to discover theres already an established artist called "Bob".
Can I possibly run into any legal problems naming myself that?
go to the trademark site... official us gov... and do a name search.. it'll come upSay I wanted to call myself "Bob" and did a quick search only to discover theres already an established artist called "Bob".
Can I possibly run into any legal problems naming myself that?