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Can you be more specific please? That could be a lot of songs. What is the tempo/what does the singer sound like/roughly what year did it come out?
The year is pretty recent like at the very most 3 years old would be my guess. The "Woo Hoo" part near the end is acapella. It's NOT the Kill Bill song or the Blur song.
Okay, is it one singer or are there backing vocals? Is the singer's voice high or low? Does it sound male or female? How fast is the song? How long does this section last for? Do you remember anything else about the song?
You are going to need to answer all of the above questions before we can help you, there are probably thousands of songs that have "woo hoo" in them.
Edited by modgethanc
FINALLY FOUND IT! Coldplay - Adventure Of A Lifetime: https://www.youtube.com/watch?v=nJtK14ffgEM
There is this popular indie rock (possibly pop) song that I hear a lot today that ends with "Woo hoo (Woo hoo) Woo hoo (Woo hoo) Woo hoo (woo hoo)". Does anyone know what I'm talking about?