What is the song that goes ya ya ya ya yaaaa and I heard this song in a Teletubbies ytp?

The song you're thinking of is likely "Dragostea Din Tei" by O-Zone, which features the catchy "ya ya ya" refrain. This song gained popularity in the early 2000s and has been used in various memes and parodies, including YouTube Poops (YTPs) involving Teletubbies. Its upbeat melody and memorable lyrics make it a popular choice for remixing and humorous edits.