The Jonas Brothers are no strangers to bringing out special guests at their shows — especially on their current tour, Jonas20: Greetings from Your Hometown — but last night's surprise appearance might ...

To fall in love with 5 Seconds of Summer, you only need 6 seconds. In this case, we're bringing you a few more than 6 seconds — more like 120 seconds, to be exact — of some of 5SOS' most dorky, silly ...