Are you familiar with this song? 🤔 I wasn't - but it's a great one for beginners, and super fun to play! You'll only need the A, D, and E chords.
To play Pontoon by Big Little Town on guitar, check out the full lesson here: https://www.justinguitar.com/songs/little-big-town-pontoon-chords-tabs-guitar-lesson-sg-112
Cheers :)