They say "What happens in Vegas stays in Vegas." But, they aren't always right. In fact, we think we proved them wrong this weekend when we flew to Sin City for the iHeartRadio music festival. We packed our fanny packs, our body-con dresses, and set out to talk to some of the top names in music. We sang love songs with Jason Derulo and went on a first date with Trey Songz. We also got down and dirty with Rita Ora and scored the details on J.Lo's pre-show routine — straight from J.Lo herself. And, okay, maybe J.Lo is staying in Vegas to start her residency, but at least we have a few of her secrets. Watch our exclusive video to sing, laugh, and maybe cry a little about how you're not J.Lo. Did we mention we met J.Lo?