One Direction, Miley Cyrus, Justin Bieber and Kelly Osbourne have made it onto a list of the most influential people under 30.
The publication put together 450 names of people in 15 different categories, including technology, Hollywood and entertainment, who are " changing our world".
The Hollywood list features actress Olivia Wilde, Girls creator Lena Dunham, Oscar winner Jennifer Lawrence and TV presenter Kelly Osbourne among others.
Aussie actress and comedian Rebel Wilson, Orange Is The New Black star Taylor Schilling and 10-year-old actress Quvenzhane Wallis also make the list.
Fashion Police host Kelly tweeted that she was delighted to have been included.
"F*** yeah I made the @Forbes 30 under 30 list this year! Dadda I told you I would make you proud! @OfficialOzzy!!!! #HardWorkPaysOff."
Kelly, the daughter of Ozzy and Sharon Osbourne, said that it showed she had found success in her own right, writing: "No coat tails for me I did it!!!!!!"
The music list features Bruno Mars, Calvin Harris, Katy Perry, Lady Gaga, One Direction, Rihanna and Taylor Swift, as well as Bieber and Cyrus.
Forbes wrote that "more good fortune" was on the way for the world's biggest boyband One Direction, with more gigs around the world and their third studio album, Midnight Memories.
Meanwhile, Rush actress Olivia Wilde - who turns 30 in March - was also pleased to have made the list for the final time she was eligible.
She tweeted: "So close to being too old for this. Thanks!"