The annual awards event was held at The Wiltern Theater in Los Angeles.
Hudgens won Trendsetter Award while Bieber won Champ of Charity Award for his work with Make-A-Wish foundation. Cody Simpson was the one who presented the award to the 'Baby' hitmaker at the event.
At the red carpet event, Bieber kept his look simple by wearing a grey long-sleeve top and a pair of jeans. He completed his look with a pair of white shoes and chain necklace.
Meanwhile, Hudgens showed off her toned figure as she wore a blue halterneck crop top with a full-length white skirt.
The 2014 Young Hollywood Awards was hosted by Kelly Osbourne.
Ansel Elgort won Fan Favourite Male Actor Award, while Chloe Moretz won the female category of Fan Favourite Actor Award. Stars of 'The Vampire Diaries', Nina Dobrev, Ian Somerhalder and Paul Wesley, won Best Threesome Award.
Meanwhile, 'Orange Is the New Black' won Bingeworthy TV Show Award.