most accounts i've hacked, the first albums were actually a singer's name. Girl growing up in between 2000-2010 it's most likely some poppy shit (britney spears, beyonce, one direction) but i found out she had a twitter when she was in 2013 that had justinbieberfan in her username so just a guess there. Someone here already said who her best friends most likely were as well. I also have a bunch of data bases i would check for leaks that include the email and password matches. If that failed I would try to get in her email itself or facebook to see if a password was on that. I'm not some average person, i have over 10 years in social engineering hacking experience. That's why I'm wanting the email address.