Jessie McKay

is an Australian professional wrestler currently signed to WWE under the ring name Billie Kay and performing on the SmackDown brand. In WWE, Kay is one-half of The IIconics tag team with Peyton Royce. Both Kay and Royce are the current Women's Tag Team Champions in their first reign. In June 2007, Kay made her professional wrestling debut at Professional Wrestling Alliance (PWA), and she debuted one-year later for the Pro Wrestling Women's Alliance promotion, where she became a two-time PWWA Champion. She later started competing on the independent circuit with multiple promotions in the United States for several years, most notably and commonly for Shimmer Women Athletes.

McKay began wrestling for Professional Wrestling Alliance (PWA) in 2007 after completing her training with co-owner Ryan Eagles and his wife Madison Eagles. She wrestled and won her first PWA match on 23 July, in a three-way match against Aurora and Madison Eagles at PWA Glory. Her next PWA match took place the following year on 9 February at PWA Wrestlepalooza, in a losing tag match teaming with Savannah Summers against Madison Eagles and Sway. On 28 February at PWA Ladies Show, McKay wrestled and won two consecutive matches during the event. She won her first championship on 2 August winning the PWA Women's title from Kellie Skater at PWA Payback II. Her title reign ended on 21 November 21, when she was defeated by Penni Lane.

McKay went on to regain the PWA Women's title on 4 September 2009, at PWA All That Remains - Night 1.

She went on to hold the championship until 11 July at PWA Call To Arms 2010, losing the title to Madison Eagles.

On April 7, 2019 at Wrestlemania 35 at Met Life Stadium in East Rutherford, New Jersey she along with Peyton Royce captured their first championship in WWE when they won the WWE Woman's Tag Team Championship from Sasha Banks and Bailey.