I'm pretty sure #Vevo1st just means it's premiering on Vevo first, not necessarily on the 1st.
Why would they ask for your phone number to notify you when it's going to be surprise released, only to tell you the date later?
I don't see where it says it's coming on Sunday. If you're going by the #Vevo1st tag, I think that just means watch it on Vevo first- as in it's premiering on Vevo.
Edit: Though I hope I'm wrong. Can't wait to see what it is!
I'm pretty sure #Vevo1st just means it's premiering on Vevo first, not necessarily on the 1st.
Why would they ask for your phone number to notify you when it's going to be surprise released, only to tell you the date later?
They're not explicitly revealing the date, nor did they even hint to a time of release.