Why does pandora keep playing on its own?

My husband has a Galaxy Note edge. He has the Pandora music app downloaded on his phone that we use pretty frequently. The mystery that I am trying to crack is that Pandora keeps automatically starting up on it's own. Which isn't that weird but the fact that it plays the SAME SONG every time it starts up is starting to be weird. The first time, 'oh cool good song'. The second time 'oh cool good song'. The third time 'wait a minute this is the same song that randomly played the last two times'. Now 4th, 5th, 6th time I am really trying to figure out what is going on here. It is a Spanish song that plays. My husband isn't even Spanish but it is like one of two Spanish songs that he actually enjoys. Which I think makes it even weirder!! Is this just a coincidence? Has this happened to anyone else? I am pretty superstitious but I have my reasons. Google has no answers for me. Answers?

having the same problem. I do not use the widget, just the regular icon and it will start playing out of nowhere.