Kelsea Ballerini wasn't above admitting she was 100% drunk while stunning in a strapless bikini for Cinco De Mayo. The 27-year-old country singer, whose hit tracks include "Hole In The Bottle," today wowed her Instagram followers with gorgeous snapshots for the annual 5 May calendar date, with the "homecoming queen?" hit-maker calling the photos a "series of me drunk in Mexico." Posting sun-drenched shots for her 2.3 million followers, the blonde quickly saw the in-jokes flying in. See why below.