SOLVED :(Pop?)Song 2012-2013 Female Voice (Radio) first slow then fast

Hey,

Im searching for a Song. My Mom listened to this song in 2012-2013 while she was in Zumba (https://en.wikipedia.org/wiki/Zumba).
The problem is she couldnt provide me that much usefull Informations because she can't speak english at all. But i got a few Notes.

- Female Singer
- it was on the Radio in Germany many times (2012-2013 not sure what year exactly)
- The song started slow but then came it goes really fast & has power (i guess she means a drop)
- Probably something like "i dont wanna let you go/are you wanna go" or something like that in the Lyrics. (She hummed to me, i guess thats what she hummed.)
- No Male Voice in the whole Song


I know, not much Informations but.. Maybe im lucky and some one of you knows what my mom mean.


Kings Regards
Marc

Found the Song by myself. It was "Loreen Euphoria"
https://www.youtube.com/watch?v=Jse191Dq3nc