SHOULD I CALL JUSTIN BIEBER?

You see I go to a dance school in L.A, with Demi Lovato's little Sister, and she introduced me to Demi. Demi is such a sweetie btw, and then Madison (Demis little sis) invited me to her house. And then we were hanging out and stuff :) we became close friends by the next week, and then Madison invited me to a house party, and Selena Gomez was there. (Selena is Demis BFF). I talked to her told her I was a big fan. She blushed then said thanks. Then Selena, Demi & Madison were in another room, & I saw Selenas phone on the couch. I picked it up and ran to the bathroom with it, I went through her contacts and I saw Justin Biebers number!!! ( and a lot of other celebs ). I quicky took out my phone and stored it in.. Than I put Selenas iPhone in my pocket ran out the bathroom and into the living room (where the phone was) and I put the phone back exactly where it was.. Then I went in the room, and act as if nothing happened.. :) So now it's been about a week and I'm sooooo confused. Should I call him? What should I say? Will he tell Selena?! I'm scared!!! Or should I was erase his number? What do I do..