An exclusive morning-after conversation with the 25-year-old best actress winner and newest Hollywood A-lister who — still waking up to the reality of her stunning win — opens up about her upset victory, Oscar-night escapades and her post-ceremony texts with Demi Moore.

Tate McRae topped the Billboard 200 on Sunday, earning the pop star her first No. 1 album in the U.S. The 21-year-old Canadian singer released her third studio album, So Close to What, on Feb. 21, featuring singles "Revolving Door,

Tate proceeded to bust it down on stage while singing, something I was blessed to see live. I love her music, but her stage presence and dance skills are truly unmatched, and she did not rest for the next seven songs.