Jonas Brothers Spent a Year br in Therapy Before Reuniting The band made an appearance on br 'The Late Late Show' on Monday and br opened up about the challenges br they've faced. Nick Jonas, on 'The Late Late Show' Nick Jonas, on 'The Late Late Show' While working on their new documentary, the siblings said they "started to realize that there was a magic that we felt like we br were missing.” Nick Jonas, on 'The Late Late Show' The brothers' newest single, "Sucker," which features their significant others, is the first song they've released together in over six years.