• Joe Jonas used to call his brother "Frankie Bonus"
  • Frankie used to hate the nickname
  • Joe says Frankie had done "a lot of healing"

Joe Jonas has apologized to his younger brother Frankie for calling him "Frankie Bonus," a nickname the 20-year-old musician used to hate.

In an interview Thursday, Joe spoke about the struggles Frankie faced while growing up and how he was "hurtful" toward his younger brother.

"He's done a lot of healing behind the scenes, and this is his way of bringing you into his own universe," the 31-year-old musician told Bustle. "He has a lot of fun with it. The guy is the social media star we honestly need."

Joe also revealed a nickname, which his younger brother used to hate while growing up.

"I refused to call Frankie 'Bonus Jonas' after he opened up to me about how that was hurtful to him," Joe said. "It completely makes sense, and we've had lengthy conversations and apologies behind closed doors that showcased my understanding and respect for his wishes."

"I think to feel like you are second, third, or fourth-best from something is unfair. We are all equals," he added. "We were probably the two biggest nerds when it came to anything Marvel or DC. He was just a walking encyclopedia of knowledge when it came to anything in that world."

Joe also reflected on Frankie's career, saying he always wanted to see his brother happy.

"I just want him to be happy. If that means he wants to be TikTok famous, great; if that means he wants to be an author, great; if that means he wants to be a scientist, great!" he explained. "He could pretty much do anything he puts his heart and mind to, and he's done that already. I'm just so proud of the man he's become."

Frankie told the magazine that he felt his "future slowly died" because of the Jonas Brothers' careers.

"They were like, 'We're going to move to L.A. for your brothers' career.' I had planned out my entire life in Jersey," Frankie explained. "I was 5, and I'm like, 'I'm going to go to Princeton and be this college football star who comes back home and becomes an astrophysicist.' That was my plan. And I watched it just fade to dust. My future just slowly died."

Joe will soon be seen in a war movie, "Devotion," which is directed by Justin Dillard.

Sophie Turner, Joe Jonas
Joe Jonas (L) and Sophie Turner attend the Vanity Fair Oscar Party on Feb. 24, 2019, in Beverly Hills, California. Getty Images/Dia Dipasupil