Songfacts®:

• This song by R&B singer Sean Kingston from his mixtape King of Kingz features the rapping of a certain Justin Bieber. The teenage Canadian singer, who sometimes uses the alias Shawty Mane, also lends his vocals to the second chorus of the track. "[He's] pretty tight, nice for someone who doesn't do it that much," Kingston said to MTV News of Justin's rhyming skills.
• Justin's rap features him attacking those who might not believe in his staying power. He told MTV News that he personally penned the words: "It was a while ago. I did it in the studio. I wrote it though, just letting you guys know," he shared. "Probably all you haters saying, 'He didn't write that.' I wrote it."
• This is not the first collaboration between the two artists. Kingston and Bieber previously teamed up to record the hit single, "Eenie Meenie."