The pop-filled Liverpool festival takes place between September 1-2 and will see both acts taking top billing across the weekend.
They’ll be joined by an impressive line-up that includes the likes of Clean Bandit, Years & Years, Jess Glynne, Zara Larsson, Sigala, James Arthur, Louisa Johnson, Jax Jones and MNEK.
Tickets go on sale on Friday and you can buy them here.
Describing his set, Shawn Mendes said: “I’m so excited to be headlining Fusion this year. So many awesome musicians have played the festival in the past and I’ve heard it’s incredible. Can’t wait to see you all!”
Damien Sanders, Event Director of Fusion Festival, added: “Every year Fusion grows and the line up is filled with more superstars. From Ed Sheeran to Little Mix and Take That to Ne-Yo, we never disappoint, and Fusion 2018 will once again impress the crowds with the biggest acts of the year playing including David Guetta and Shawn Mendes! We are delighted to be partnering with Capital Liverpool once more and can’t wait to round off the summer with the biggest pop music event of the year!”