Singer-songwriter Pharrell Williams says he'll never be as successful as Jay Z and admits he was "deluded" to think he could compete with him.Williams thought he could compete with the Holy Grail rapper when he started releasing solo material, but he believes he was wrong and was trying to be someone he wasn't when he recorded his debut In My Mind in 2006."It was in my mind, but not in my heart. It was this caricature that I'd built in my mind, that fitted in with what Snoop and Jay were doing," contactmusic.com quoted Williams."Some of the things I said on that record, all the bragging, it's not necessary. It doesn't say anything about you, apart from how shallow you are," he added.