With tunes like "Love Yourself" and "What Do You Mean?," it's easy to forget BB Justin Bieber's very first hits. His debut EP, My World, featured songs such as "One Less Lonely Girl" and "Love Me," but it was his jam "One Time" that still gets stuck in my head.

This classic JB song turns seven this year, but is still catchy as ever. You've listened to it more times than you'd like to admit — the music video has over 450 million views — but do you remember all the words?