![R&Beef](http://townsquare.media/site/584/files/2013/08/Lyfe-Jennings-Raheem-DeVaughn.jpg?w=980&q=75)
R&Beef
In another case of R&Beef, singer Lyfe Jennings is taking a page out of Kendrick Lamar's book with an R&B version of 'Control.' Jennings called out Raheem DeVaughn Thursday for not participating in a "friendly competition" he issued to fellow crooners to see who has the best songwriting chops in the genre.