Floyd Mayweather's sizable entourage has enjoyed at least one constant in recent years.
Pop sensation Justin Bieber.
The polarizing Canadian, who apparently met Floyd through his obsession with an app from a company in which Mayweather had invested, has walked out with Floyd for his last five fights, starting with his 2012 rematch against Miguel Cotto.
As such, it wasn't terribly surprising when he walked onto the stage during the Mayweather vs. Pacquiao press conference (video here), hugging Mayweather and joining the photo op as the pugilists promoted their May 2 super fight in Las Vegas (details).