Kanye defeats 50, Eminem starts new album and Prince takes on YouTube. All this week in Billboard In Sixty. Tell us what you think! Email us at InSixty@Billboard.com. You can also email Danielle F

Kanye defeats 50, Eminem starts new album and Prince takes on YouTube. All this week in Billboard In Sixty. Tell us what you think! Email us at InSixty@Billboard.com. You can also email Danielle Flora at Danielle@Billboard.com.