Justin Bieber Responds to His Dad Complimenting His Package: 'What Dad WOULDN'T Be Proud?'

Plus, Justin reveals the name his fans have given his package.

Keep the naked Justin Bieber compliments coming.

Despite some fans' complete mortification over Justin's dad, Jeremy Bieber, recently boasting about his son's private parts on Twitter, the 21-year-old pop star isn't bothered by it in the slightest.

"I thought it was hilarious," Justin tells the Zach Sang & The Gang radio show in a new interview. "'What do you feed that thing?' he said. It's such a dad thing to say. When I found out people were hating on him for saying that, I was like, 'Are you kidding me? What dad wouldn't be proud of that?'"

WATCH: Justin Bieber's Dad Is 'Proud' of His Son's Package

"It's not like he’s saying it to an 11-year-old," he points out. "I'm 21 years old, you know what I mean?

Nude photos of Justin while on vacation in Bora Bora hit the Internet earlier this month, after which Jeremy tweeted,"@justinbieber what do you feed that thing. #proud daddy." He later followed it up with a picture of a dog, writing, "@justinbieber he's a beaut."

Despite positive reaction such as this to the eyebrow-raising shots, Justin insists that he's still unhappy about the invasion of privacy.

"At the end of the day, the photos, they're not terrible! But honestly, at first -- and before the reaction was what it was, and still with the reaction -- I still felt, like, I wanted to keep that part for me, you know?" he explains. "I felt like it was a little bit of an invasion of privacy. I just don't want people to think I'm, like, 'Yeah' [points to the camera]. And when I first found out about it ... my heart sank."

"What am I gonna do now? It's out there," he adds about making the best of the situation. "So the more I stress about it, I'm like, 'They're out, what can I really do?'"

Justin even jokes that his fans now have a name for his package.

"They call it Jerry," he smiles.

WATCH: Justin Bieber Flaunts New Stomach Tattoo, Gets Another Excuse to Show Off Washboard Abs

Watch the video below to see Justin dancing through his court-mandated community service last week.