Belinda Carlisle certainly knows how to survive in the music biz, and now, she’s sending some sage advice to Justin Bieber! The “Go-Go’s” lead singer stopped by the set of “omg! Insider” to give us the scoop on her new single, “Sun.” Check out the vid to hear what she thinks the Biebs needs to do to stay healthy! And, don’t forget to check out “omg! Insider” on TV for the latest entertainment news.