Pete Wentz has one wish for his son, Bronx.

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"I hope he gets his looks from his mother," the Fall Out Boy rocker told at the DJ Hero Launch event in L.A. Monday.

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And according to him, the six-month old baby boy does look like his wife, Ashlee Simpson-Wentz.

"Trust me, he's cute," he blogged in December.

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When it comes to raising Bronx, the musician prefers not to be too stern just yet.

His advice?

"Don't discipline them too much," he tells Us.