Singer Jennifer Lopez thinks it is a pop star's job to push the boundaries, insisting the 音楽 scene would be 'boring' if they didn't. The 41-year-old has defended the likes of pop 星, つ星 Rihanna, who has recently caused controversy with her racy performances, saying artists like her have to take risks with their stage antics. The On The Floor hitmaker told British 星, つ星 magazine: "It's part of our job to push the envelope and test the boundaries - if あなた don't, it gets boring. "So I 愛 everything. I'm an artist and I 愛 that's what they do. あなた can't ask them to not be who they are."