Awesome Music: "World War III", "Shelf" and their cover of "Poor Unfortunate Souls".
Base Breaker: Nick Jonas and Joe Jonas' solo projects. Some love Joe's solo album Fastlife, while others hate it, the same for Nick Jonas And The Administration's Who I Am.
And when Nick and Joe cover each other's songs, there will, inevitably, be fights that break out over whether or not the brother covering it is doing it better than the original.
Lines, Vines And Trying Times qualifies. Fandom's pretty evenly split on whether to love it or hate it, since it's something of a departure from their previous straight-up pop rock sound.
And a new one: With Joe and Nick using Precision F Strikes, the fandom's pretty divided as to whether it just doesn't bug them, or whether it sounds cheap and is just an attempt by the band to get people to see they've "grown up".
Their new single "Pom Poms" has already turned into this. There seems to be three camps about it: 1. They hate the lyrics (and the [leaked] music video) and miss their old sound, circa "A Little Bit Longer". 2. They like both and see no problems with it. And 3. the group who think it's over-hyped and doesn't live up to it.
"Pom Poms" is even a base breaker critically. There's some who think it's a great pop song that's fun, and then there's some who hate it and its lack of meaning.
Fanon Discontinuity: Lines, Vines And Trying Times, since it's a Base Breaker, and some fans prefer to pretend it (and the brothers' respective solo careers) never happened.
Fridge Horror: Following the theory that "Black Keys" is about self-harm, what can the line "the lights out never had this bright a glow" mean other than the singer being tempted with the idea of suicide?
Made even worse with "Wedding Bells", which all but outright states that the singer got drunk upon hearing the news, as well as the line "if I fall asleep, then wake me up cause I'm trying to see the light", which continues with the implications of suicidal thoughts. (And, like "Black Keys" and "A Little Bit Longer", Nick wrote "Wedding Bells" on his own.)
Friendly Fandoms: Surprisingly friendly with the 30 Seconds to Mars fanbase. The Jonas Brothers reunion show at Radio City Music Hall was aired live on Mars' online music pay-per-view event service, VyRT. This made them the first band besides 30 Seconds to Mars themselves to stream a concert with the service. The Mars fanbase, the Echelon, took time on the VyRT site and other social networks to answer questions about the service, help overseas fans figure out what time the stream would be airing, and explain to the parents of Jonas fans that, yes, their credit card info WILL be safe if they pay for the ticket. Most Jonas Brothers fans appreciated the help. Of course, there was the occasional cross-Fan DumbFlame War and some Echelon members were merely assisting Jonas Brothers fans because the financial and critical success of the Radio City show stream would benefit VyRT and Mars in the long run.
Hilarious in Hindsight: "Video Girl" is about girls in music videos and how they aren't going to do it again. Following his break-up with Taylor Swift, Joe Jonas dated (and then split with) Camilla Belle, who was in the video for "Lovebug".
Hype Backlash: From their own fandom over "Pom-poms", which has been so hyped by the group (and a good chunk of the fandom) that some people feel disappointed.
Iron Woobie: People tend to perceive Nick as this, if not all three of the boys, and it's referenced in "Hollywood".
Now we're making headlines, primetime, saying 'what a story'...
To be fair, it is somewhat justified, because before they were picked up by Disney, they worked for Columbia, who basically dicked around with them and kept pushing back the release of their album, which got very little advertisement aside from what the boys did personally, and very nearly went bankrupt before Disney signed them.
And, of course, Nick has his diabetes.
Launcher of a Thousand Ships: All three. Joe's been paired with his girlfriends, his brothers, any one of the other Disney stars, male or female. Nick's gotten the same treatment, and even Kevin's gotten in on it. (And one of the most popular pairings for Kevin is him and Zac Efron.)
Snark Bait: It was very popular to hate these guys at the hight of their popularity, especially amongst those still feeling the pain from the Backstreet Boys/*NSYNC era.
Tear Jerker: Their new song "Wedding Bells", penned by Nick about Miley Cyrus' engagement.
I don't wanna love
If it's not you
No, I don't wanna hear the wedding bells prove
That we can't try, one last time
No, I don't wanna hear the wedding bells chime
"A Little Bit Longer", which was written about Nick's diabetes.
"Black Keys", which some have theorized is about self-harm.
Vindicated by History: They were no doubt superstars when they came out, but the backlash from non-fan died down with they hype and many of them eventually realized that, even if they didn't like the songs, the boys were still decent musicians.