Back in the day, rappers would head to the booth to air out their issues with fellow artists, using songs to fight their battles. Think Jay Z and Nas’ dispute on diss tracks like ‘Takeover’ and 'Ether,' respectively. Then there were others like Beanie Sigel's 'Jadakiss Diss' and the 'F--- Beanie Sigel' delivered by Kiss.

But since the birth of Twitter in 2006, it’s much easier for rappers to air out their issues in 140 characters or less, directing their opinions straight at their opponents without cashing out on studio and production costs.

From Lupe Fiasco and Kid Cudi’s recent key-pushing fight to Iggy Azalea's war of words with Snoop Dogg and Azealia Banks to Maybach Music Group’s own internal dirty laundry, we take you inside some of the social networking sites biggest conflict in What's Beef? 10 Hip-Hop Twitter Feuds.