Updated: May 15, 2013 12:35 pm
"I was filming Sam & Cat and I was with my best friend Alexa and my mom," Ariana recalls. "Alexa was constantly refreshing the chart on her phone, and Alexa threw her phone and it flew onto the floor. She was screaming, and she was like, "It's number one!" It was the coolest. Everyone was just dying. At that same moment my brother called me. Everybody was sitting at home, refreshing the chart. In that one minute, everyone was just having a nervous breakdown. It was just the coolest. One of the greatest moments of my life."
Check out the full Hollywood Reporter interview: