Invincible

A track from Machine Gun Kelly's debut album, "Invincible" features Ester Dean on the hook, which earned her a songwriter credit along with Kelly. The song is about overcoming adversity and blocking out negativity in the quest to succeed.

The producer on this track was Alex Da Kid, who has supplied the beats for many successful rap/sung collaborations, including "Love the Way You Lie" and "I Need a Doctor."

This song was foisted on MGK by his record company, Interscope, which was following a proven formula: get a beat by a hot producer, add a hook by a female singer, and have a rapper fill in verses about overcoming obstacles. Kelly balked at first. "I hate cookie cutter songs," he told the Tampa radio station WILD 94.1. "I write all my hooks, so when I got this hook I was offended: you guys think I'm a cookie-cutter artist. I don't work like that." He came around when he realized how much havoc he was causing by refusing to record the song. By defying his record company, he was putting those who championed him at Interscope in a tough spot, so he acquiesced and did the track. If he held out, the label most likely would have had one of their other rappers like Kendrick Lamar or Yelawolf do it.