I liked them before they became popular
A person says this when a group they've been into for years becomes famous. It's like they're saying, 'I liked them before they were famous, and now I'm the only one who still remembers them.'
I liked them before they were famous, and now I'm the only one who still remembers them.
I was with them before they were cool, and now I'm the only one who still likes them.
They were just a bunch of nobodies before they got famous, and I liked them anyway.