Floyd Mayweather Jr. Mentoring Justin Bieber?

Justin Bieber, 18-year-old Canadian crooner, may have raised some eyebrows when he appeared ringside with Floyd Mayweather Jr. holding one of the fighter's belts on Saturday. However, the reason for Bieber's appearance in the entourage may stem from Mayweather mentoring the young music star.

After Bieber appeared in an entourage with 35-year-old Mayeather's best friend, rapper 50 Cent, and wrestler Tripple H many, people were surprised. However, TMZ reported that Bieber was Mayweather's mentee.

Mayweather reportedly invited Bieber to join the boxer for the Miguel Cotto fight four months ago, according to the entertainment news source. The two reportedly became friends after the pugilist saw Bieber's movie, "Never Say Never" and wanted to reach out to the singer.

TMZ reports that Mayweather, nicknamed "Money" and "Pretty Boy Floyd," wanted to mentor the 18-year-old boxing fan. Sources told TMZ that Mayweather has been trying to share his work ethic with Bieber, trying to teach the young singer that he could achieve the same level of success.

However, many thought the union was out of place when they saw Bieber carrying Mayeather's belt Saturday night.

David Lee, Golden State Warriors power forward, was one of many to question Bieber's appearance in the entourage.

"I'm going to need a reason that Justin Bieber just walked out of the locker room with Floyd and 50 Cent," Lee tweeted.

Although many considered Bieber's appearance shocking, the young singer spoke about the similarities between he and Mayweather along with his admiration for the fighter in an interview with V Magazine in January.

"Everyone wants you to be on top, and as soon as you're there -- like Floyd Mayweather, he's the best boxer in the world. Now he is a champion," Bieber told the publication. "Every time he goes to a fight now, people are like, 'He's going to lose this time,' and then he wins. And the next time they say, 'He's going to lose,' again ...Every time he wins. And people aren't ever going to know that he's a champ."