Not people using songs like Firework and Fancy in here when they were huge globally
You can't always judge a song's success by its peak position. Look at Fancy for example, it peaked at #5 in the UK, yet it sold more than half of the #1 hits in the UK that year. Also it peaked at #12 where I live yet it felt massive, I heard it everywhere
OT: Real local hits would be the likes of 'Drunk In Love' or 'Anaconda'
