Rap icon, hip-hop mogul and extremely wealthy entrepreneur Dr. Dre earned $620 million before taxes in 2014, the largest ever single-year haul for any musician, making him the world’s top-earning musician for the year.

Calculated by Forbes, Dre’s 2014 payday came in half a billion dollars higher than No. 2 earner, Beyoncé, which is the widest margin in history between first and second ranks. Beyoncé had the most lucrative year of her career in large part to the Mrs. Carter Show and the On The Run tour with her husband Jay Z.

Andre Young, known best by stage name Dr. Dre, is the founder and CEO of Aftermath Entertainment. This past May, he sold the company he co-founded, Beats Electronics, to Apple for a cool $3 billion. His production expertise on Kendrick Lamar’s album, good kid, m.A.A.d city, helped the record secure 2014 Grammy nominations for Album of the Year and Best Rap album.

Calvin Harris was the only electronic artist to crack the top 10 in 2014. However, his $66 million earnings figure is the highest single-year payday of any DJ ever.

To create the list, Forbes considered income from touring, recorded music, publishing, merchandise sales, endorsements and other ventures.

2014′s highest paid musicians:
1. Dr. Dre: $620 million
2. Beyoncé: $115 million
3. The Eagles: $100 million
4. Bon Jovi: $82 million
5. Bruce Springsteen: $81 million
6. Justin Bieber: $80 million
7. One Direction: $75 million
8. Paul McCartney: $71 million
9. Calvin Harris: $66 million
10. Toby Keith: $65 million