Justin Bieber, Mariah Carey, Kyga, Katie Holmes

Justin Bieber may or may not be obviously experimenting with drugs.

Singer and reality show star Mariah Carey heads out and about in New York.

Kylie Jenner and Tyga (Kyga) look both directions before crossing the street at usual.

All We Had star and director Katie Holmes walks and talks out and about in Hollywood, probably planning her next picture.

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