According to Kanye West Rihanna caused Beyonce to step her game up.. “This is a wake up call…people in music get comfortable.” “Rihanna was the best thing to happen to Beyonce,” says the 808’s & Heartbreak star. In today’s highly competitive music industry Kanye’s point is all too real. If anyone slacks in their approach now more than ever it could be disastrous. Since her debut in 2006, Rihanna has clearly given many pop stars a run for their money so to speak. The singer’s last three hits have broken Billboard Hot 100 records, all while the Def Jam star rides through countless tours including Kanye West’s highly anticipated “Glow In The Dark” tour. According to Kanye, Beyonce has stepped her game up with “Single Ladies (Put A Ring On It).” At a recent listening session for his new album, Kanye expressed his respect and love for the record, saying it was a concept that he never would have come up with… What do you think…. Has Beyonce stepped her game up ?