Joe Jonas
The DNCE singer will be by his brother's side on his special day. Joe, who is engaged to Game of Thrones star Sophie Turner, will likely ask Nick to return the favor on his wedding day.
Kevin Jonas
The eldest Jonas brother will also be a part of Nick's wedding party. For his wedding in December 2009, Kevin had Nick and Joe by his side, both serving as co-best men.
Frankie Jonas
Nick and Priyanka's wedding wouldn't be complete without the "Bonus Jonas!" The youngest of the famous siblings is also expected to serve as a groomsmen.
Jonathan Tucker
The former Disney Channel star formed a close friendship with the actor while working on their show Kingdom.
Siddharth Chopra
Priyanka's younger brother will also serve as a groomsman in the wedding. "Epic bachelor party coming up!" he commented on Nick's Instagram page.