How to do ingame a UMG blueprint that lets select external MP3 to play?

I am trying to do in blueprint a UMG, that will let the user select external music files “Mp3 or music cd”, but have not been able to do it! Where can I find info. on the subject, or can someone please give-me some feedback on how to solve this task? Thanks in advance!

Does a Unreal market place item like this exist?
Or are there any tutorials on the subject?
Help needed! thanks!