Rookie quarterback Johnny Manziel apparently isn't heeding the advice of Cleveland Browns owner Jimmy Haslam and other former NFL Hall of Famers.

Manziel, who said last week that he wouldn't change his lifestyle for anyone, spent Monday night partying in Hollywood with pop star Justin Bieber, boxing champion Floyd Mayweather and Tyrese.

Pictures of Manziel with the two were posted online by Bieber. Police were called to the house twice -- once because of noise and also because of the crowd of fans gathered outside the home.

Last week, Hall of Famers Emmitt Smith and Joe Montana suggested that Manziel could be hurting his career with his public escapades. Haslam also wants the quarterback to tone it down, according to an ESPN report. Manziel defending himself, saying he's all business when it comes to football.

Manziel will report to training camp later this month with the rest of the Browns. He attended the NFL's rookie symposium last week and then visited the Pro Football Hall of Fame on Saturday.

Manziel, a former Heisman Trophy winner, is entering his first season with the Browns after he was picked in the first round of the NFL Draft in May out of Texas A&M.