I know this would be a really easy and kinda simple question, but i am actually struggling with making the leading synth sound from Katy Perry- E.T. I am assuming it is either squarish or sawish sound, and i kinda used Sylenth to put Square on one side and the saw and tiny noise on the other side with a smaller volume and a filter, and i think it kinda sounds like it. But i want you guys' help anyway. Thanks.

https://www.youtube.com/watch?v=18oYGsmUprM