"Love The Way You Lie" by Eminem featuring Rihanna tops the 5 million mark in digital sales this week. It's the 15th song to reach that plateau. It's the biggest digital seller for both artists. Eminem's second biggest hit is "Not Afraid," which has sold 3,991,000 copies. Rihanna's is "Disturbia," which has sold 4,240,000. "Love The Way You Lie" spent seven weeks at #1 last summer.
List of songs that have sold over 5 million in digital sales
Do i even need to say anything ? 
Summer Jam 2010.