What is the song that goes lalalala lala la lalalala la Also the tune is like high high high high higher less high high high high high low. All of the groups of las are one beat...?

The song you're referring to is likely "Can't Get You Out of My Head" by Kylie Minogue. The repetitive "lalalala" part aligns with the song's catchy melody. The description of the tune also fits well with its rhythmic structure. If this isn't the song you meant, please provide more details!