Justin Bieber leads the way for celebrities under 30 who RAKED IT IN between June 2013 and June 2014.
Avicii

Avicii ranks #9 on the list of rich celebrities under 30, according to Forbes. He made $28 million from June 2013 to June 2014.
Lady Gaga

Lady Gaga pretty much prints money at this point, to the tune of $33 million between June 2013 and June 2014.
Jennifer Lawrence

Jennifer Lawrence earned $34 million by starring in many films and being the face of Dior and being all around awesome.
Miley Cyrus

Miley Cyrus doesn’t JUST pose in a weird way on Instagram. She makes money by touring and singing, resulting in $36 million in a year.
Rihanna

Rihanna hasn’t released a new track in awhile, but she still made $48 million in about one year’s time.
Bruno Mars

Bruno Mars made a cool $60 million between June 2013 and June 2014. Not shabby!
Taylor Swift

This just in: Taylor Swift does very well for herself. She made $64 million in about one year’s time.
One Direction

One Direction raked in about $75 million – by being both handsome and talented – between June 2013 and June 2014.
Justin Bieber

Through his tour and his album, Justin Bieber made $80 million in just one year.