See Charlie Puth Break Down Emotional Hit Song, 'Attention'

Since Charlie Puth released "Attention," the emotional first single from his upcoming album Voice Notes, this year, it has shot into the Top 10 and it has been certified platinum, thanks in part to the way he stacked hook upon hook.The singer-songwriter and pop star recently welcomed Rolling Stone into his studio to explain how he wrote "Attention" and his general process for Voice Notes, which he named after the iPhone's Voice Memo app, which he calls his "number-one songwriting tool.""I record