From Fifth Harmony on the Vegas strip to Nick Jonas palling around with Keith and Pitbull,  here's what a few of your favorite stars were up to this week!

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    Meghan Trainor

    The singer wowed fans with an outdoor performance at Jimmy Kimmel Live! in Los Angeles.

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    Tom Cruise

    The star wears a tux well during the premiere for his new movie Mission Impossible: Rogue Nation in Vienna, Austria.

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    Fifth Harmony

    Over in Las Vegas the girl group gave Sin City the performance it was waiting for.

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    Liev Schreiber

    The Ray Donovan star doesn't look so tough walking his tiny Yorkshire around New York City.

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    Nick Jonas, Keith Urban & Pitbull

    Three of music's main men caught up during an event for the Plenty points program in Hollywood.