Can someone name this song!?

The intro goes like this, i have used commars to indicate even the slight pauses in it.

Da, da da da, da da da, da da da da da da da, da da da, da da da, da da da da da da da, (repeats this again but the voice goes lower possibly the other group members join in) I honestly cannot think of a single word in the song that i can look up to find it with. First person to name it correctly gets best answer, please do not post an answer already posted. Thanks