• "Zoolander" star Ben Stiller with Justin Bieber

"Zoolander" star Ben Stiller with Justin Bieber (Photo : Instagram)

After filming a cameo in "Zoolander 2," Justin Bieber left Rome, Italy and was spotted arriving at LAX Airport in Los Angeles on May 1.

Bieber was seen keeping a low profile at the airport as he tried to cover his face with his hat, according to Just Jared.

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Starring Owen Wilson, Ben Stiller, Will Ferrell, Billy Zane, and Penelope Cruz, "Zoolander 2" will hit theaters on Feb. 16, 2016, Variety reported.

The Canadian pop star is expected to go to Las Vegas to support his friend Mayweather Jr. for "The Fight Of The Century" or "Battle For Greatness," which will take place at the MGM Grand Garden Arena in Las Vegas, Nevada on May 2, Saturday.

Mayweather Jr.  is an undefeated five-division world champion while his opponent Manny Pacquiao is currently the eight-division world champion.

As appointed by the Nevada Athletic Commission, the in-ring referee in the highly anticipated fight is Kenny Bayless, who has officiated seven of Pacquiao's fights and five of Mayweather Jr.'s fights in the past.

Serving as the judges are Burt Clements, Glenn Feldman and Dave Moretti.

Bayless will be paid $25,000 as the referee while Clements, Feldman and Moretti will each be paid $20,000 as judges.

Valued at $1 million, the belt for the winner of the fight newly created by the WBC contains the faces of both Pacquiao and Mayweather Jr. along with the faces of boxing legend Muhammad Ali and former WBC president José Sulaimán.

While it is an exact replica of the current belt, the Pacquiao-Mayweather fight belt has thousands of emeralds instead of the gold plating for the center logo.